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  <div class="headertitle"><div class="title">gmock-matchers.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Copyright 2007, Google Inc.</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// All rights reserved.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">//</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment">// Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment">// modification, are permitted provided that the following conditions are</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment">// met:</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment">//</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment">//     * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment">// notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment">//     * Redistributions in binary form must reproduce the above</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment">// copyright notice, this list of conditions and the following disclaimer</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment">// in the documentation and/or other materials provided with the</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">// distribution.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">//     * Neither the name of Google Inc. nor the names of its</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">// contributors may be used to endorse or promote products derived from</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment">// this software without specific prior written permission.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">//</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment">// &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment">// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment">// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment">// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment">// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment">// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment">// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment">// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">// Google Mock - a framework for writing C++ mock classes.</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment">//</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment">// The MATCHER* family of macros can be used in a namespace scope to</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment">// define custom matchers easily.</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment">//</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment">// Basic Usage</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="comment">// ===========</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment">//</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="comment">// The syntax</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment">//</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment">//   MATCHER(name, description_string) { statements; }</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment">//</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment">// defines a matcher with the given name that executes the statements,</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment">// which must return a bool to indicate if the match succeeds.  Inside</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment">// the statements, you can refer to the value being matched by &#39;arg&#39;,</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment">// and refer to its type by &#39;arg_type&#39;.</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">//</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment">// The description string documents what the matcher does, and is used</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment">// to generate the failure message when the match fails.  Since a</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment">// MATCHER() is usually defined in a header file shared by multiple</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment">// C++ source files, we require the description to be a C-string</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment">// literal to avoid possible side effects.  It can be empty, in which</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment">// case we&#39;ll use the sequence of words in the matcher name as the</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment">// description.</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment">//</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment">// For example:</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment">//</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment">//   MATCHER(IsEven, &quot;&quot;) { return (arg % 2) == 0; }</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment">//</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment">// allows you to write</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment">//</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment">//   // Expects mock_foo.Bar(n) to be called where n is even.</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment">//   EXPECT_CALL(mock_foo, Bar(IsEven()));</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment">//</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment">// or,</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment">//</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment">//   // Verifies that the value of some_expression is even.</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment">//   EXPECT_THAT(some_expression, IsEven());</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment">//</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment">// If the above assertion fails, it will print something like:</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment">//</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment">//   Value of: some_expression</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment">//   Expected: is even</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment">//     Actual: 7</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment">//</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment">// where the description &quot;is even&quot; is automatically calculated from the</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment">// matcher name IsEven.</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment">//</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment">// Argument Type</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment">// =============</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment">//</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment">// Note that the type of the value being matched (arg_type) is</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment">// determined by the context in which you use the matcher and is</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment">// supplied to you by the compiler, so you don&#39;t need to worry about</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment">// declaring it (nor can you).  This allows the matcher to be</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment">// polymorphic.  For example, IsEven() can be used to match any type</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment">// where the value of &quot;(arg % 2) == 0&quot; can be implicitly converted to</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment">// a bool.  In the &quot;Bar(IsEven())&quot; example above, if method Bar()</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">// takes an int, &#39;arg_type&#39; will be int; if it takes an unsigned long,</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment">// &#39;arg_type&#39; will be unsigned long; and so on.</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment">//</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment">// Parameterizing Matchers</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment">// =======================</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment">//</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment">// Sometimes you&#39;ll want to parameterize the matcher.  For that you</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment">// can use another macro:</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment">//</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment">//   MATCHER_P(name, param_name, description_string) { statements; }</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment">//</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">// For example:</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment">//</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment">//   MATCHER_P(HasAbsoluteValue, value, &quot;&quot;) { return abs(arg) == value; }</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment">//</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment">// will allow you to write:</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment">//</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment">//   EXPECT_THAT(Blah(&quot;a&quot;), HasAbsoluteValue(n));</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment">//</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment">// which may lead to this message (assuming n is 10):</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment">//</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment">//   Value of: Blah(&quot;a&quot;)</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment">//   Expected: has absolute value 10</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment">//     Actual: -9</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">//</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">// Note that both the matcher description and its parameter are</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">// printed, making the message human-friendly.</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment">//</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment">// In the matcher definition body, you can write &#39;foo_type&#39; to</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment">// reference the type of a parameter named &#39;foo&#39;.  For example, in the</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment">// body of MATCHER_P(HasAbsoluteValue, value) above, you can write</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">// &#39;value_type&#39; to refer to the type of &#39;value&#39;.</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment">//</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment">// We also provide MATCHER_P2, MATCHER_P3, ..., up to MATCHER_P$n to</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment">// support multi-parameter matchers.</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment">//</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment">// Describing Parameterized Matchers</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment">// =================================</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment">//</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment">// The last argument to MATCHER*() is a string-typed expression.  The</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment">// expression can reference all of the matcher&#39;s parameters and a</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment">// special bool-typed variable named &#39;negation&#39;.  When &#39;negation&#39; is</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment">// false, the expression should evaluate to the matcher&#39;s description;</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment">// otherwise it should evaluate to the description of the negation of</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">// the matcher.  For example,</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment">//</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment">//   using testing::PrintToString;</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment">//</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment">//   MATCHER_P2(InClosedRange, low, hi,</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment">//       std::string(negation ? &quot;is not&quot; : &quot;is&quot;) + &quot; in range [&quot; +</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment">//       PrintToString(low) + &quot;, &quot; + PrintToString(hi) + &quot;]&quot;) {</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment">//     return low &lt;= arg &amp;&amp; arg &lt;= hi;</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment">//   }</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment">//   ...</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment">//   EXPECT_THAT(3, InClosedRange(4, 6));</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment">//   EXPECT_THAT(3, Not(InClosedRange(2, 4)));</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment">//</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment">// would generate two failures that contain the text:</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment">//</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment">//   Expected: is in range [4, 6]</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment">//   ...</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment">//   Expected: is not in range [2, 4]</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment">//</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment">// If you specify &quot;&quot; as the description, the failure message will</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment">// contain the sequence of words in the matcher name followed by the</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment">// parameter values printed as a tuple.  For example,</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment">//</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">//   MATCHER_P2(InClosedRange, low, hi, &quot;&quot;) { ... }</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment">//   ...</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment">//   EXPECT_THAT(3, InClosedRange(4, 6));</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment">//   EXPECT_THAT(3, Not(InClosedRange(2, 4)));</span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment">//</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment">// would generate two failures that contain the text:</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment">//</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment">//   Expected: in closed range (4, 6)</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment">//   ...</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment">//   Expected: not (in closed range (2, 4))</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment">//</span></div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment">// Types of Matcher Parameters</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment">// ===========================</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment">//</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment">// For the purpose of typing, you can view</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment">//</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment">//   MATCHER_Pk(Foo, p1, ..., pk, description_string) { ... }</span></div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment">//</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment">// as shorthand for</span></div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment">//</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment">//   template &lt;typename p1_type, ..., typename pk_type&gt;</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment">//   FooMatcherPk&lt;p1_type, ..., pk_type&gt;</span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment">//   Foo(p1_type p1, ..., pk_type pk) { ... }</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment">//</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment">// When you write Foo(v1, ..., vk), the compiler infers the types of</span></div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment">// the parameters v1, ..., and vk for you.  If you are not happy with</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment">// the result of the type inference, you can specify the types by</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">// explicitly instantiating the template, as in Foo&lt;long, bool&gt;(5,</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment">// false).  As said earlier, you don&#39;t get to (or need to) specify</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">// &#39;arg_type&#39; as that&#39;s determined by the context in which the matcher</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">// is used.  You can assign the result of expression Foo(p1, ..., pk)</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment">// to a variable of type FooMatcherPk&lt;p1_type, ..., pk_type&gt;.  This</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">// can be useful when composing matchers.</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">//</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment">// While you can instantiate a matcher template with reference types,</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">// passing the parameters by pointer usually makes your code more</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment">// readable.  If, however, you still want to pass a parameter by</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment">// reference, be aware that in the failure message generated by the</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">// matcher you will see the value of the referenced object but not its</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">// address.</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">//</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">// Explaining Match Results</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">// ========================</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">//</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment">// Sometimes the matcher description alone isn&#39;t enough to explain why</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment">// the match has failed or succeeded.  For example, when expecting a</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">// long string, it can be very helpful to also print the diff between</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment">// the expected string and the actual one.  To achieve that, you can</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment">// optionally stream additional information to a special variable</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment">// named result_listener, whose type is a pointer to class</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment">// MatchResultListener:</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment">//</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">//   MATCHER_P(EqualsLongString, str, &quot;&quot;) {</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment">//     if (arg == str) return true;</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">//</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment">//     *result_listener &lt;&lt; &quot;the difference: &quot;</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment">//     return false;</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment">//   }</span></div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment">//</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">// Overloading Matchers</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">// ====================</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">//</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment">// You can overload matchers with different numbers of parameters:</span></div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">//</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">//   MATCHER_P(Blah, a, description_string1) { ... }</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment">//   MATCHER_P2(Blah, a, b, description_string2) { ... }</span></div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment">//</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment">// Caveats</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment">// =======</span></div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">//</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">// When defining a new matcher, you should also consider implementing</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment">// MatcherInterface or using MakePolymorphicMatcher().  These</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment">// approaches require more work than the MATCHER* macros, but also</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="comment">// give you more control on the types of the value being matched and</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment">// the matcher parameters, which may leads to better compiler error</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment">// messages when the matcher is used wrong.  They also allow</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment">// overloading matchers based on parameter types (as opposed to just</span></div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment">// based on the number of parameters).</span></div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment">//</span></div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment">// MATCHER*() can only be used in a namespace scope as templates cannot be</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment">// declared inside of a local class.</span></div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment">//</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment">// More Information</span></div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment">// ================</span></div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">//</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">// To learn more about using these macros, please search for &#39;MATCHER&#39;</span></div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">// on</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">// https://github.com/google/googletest/blob/main/docs/gmock_cook_book.md</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">//</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">// This file also implements some commonly used argument matchers.  More</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment">// matchers can be defined by the user implementing the</span></div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment">// MatcherInterface&lt;T&gt; interface if necessary.</span></div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">//</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">// See googletest/include/gtest/gtest-matchers.h for the definition of class</span></div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">// Matcher, class MatcherInterface, and others.</span></div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span> </div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment">// IWYU pragma: private, include &quot;gmock/gmock.h&quot;</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment">// IWYU pragma: friend gmock/.*</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span> </div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="preprocessor">#ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_</span></div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="preprocessor">#define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_</span></div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span> </div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="preprocessor">#include &lt;algorithm&gt;</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="preprocessor">#include &lt;cmath&gt;</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="preprocessor">#include &lt;initializer_list&gt;</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="preprocessor">#include &lt;iterator&gt;</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="preprocessor">#include &lt;limits&gt;</span></div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="preprocessor">#include &lt;ostream&gt;</span>  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="preprocessor">#include &lt;sstream&gt;</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span> </div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="preprocessor">#include &quot;gmock/internal/gmock-internal-utils.h&quot;</span></div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="preprocessor">#include &quot;gmock/internal/gmock-port.h&quot;</span></div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="preprocessor">#include &quot;gmock/internal/gmock-pp.h&quot;</span></div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="preprocessor">#include &quot;gtest/gtest.h&quot;</span></div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span> </div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment">// MSVC warning C5046 is new as of VS2017 version 15.8.</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="preprocessor">#if defined(_MSC_VER) &amp;&amp; _MSC_VER &gt;= 1915</span></div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="preprocessor">#define GMOCK_MAYBE_5046_ 5046</span></div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="preprocessor">#define GMOCK_MAYBE_5046_</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span> </div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>GTEST_DISABLE_MSC_WARNINGS_PUSH_(</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>    4251 GMOCK_MAYBE_5046_ <span class="comment">/* class A needs to have dll-interface to be used by</span></div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">                              clients of class B */</span></div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>    <span class="comment">/* Symbol involving type with internal linkage not defined */</span>)</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span> </div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="keyword">namespace </span>testing {</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span> </div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">// To implement a matcher Foo for type T, define:</span></div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">//   1. a class FooMatcherImpl that implements the</span></div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">//      MatcherInterface&lt;T&gt; interface, and</span></div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">//   2. a factory function that creates a Matcher&lt;T&gt; object from a</span></div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">//      FooMatcherImpl*.</span></div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment">//</span></div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment">// The two-level delegation design makes it possible to allow a user</span></div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">// to write &quot;v&quot; instead of &quot;Eq(v)&quot; where a Matcher is expected, which</span></div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">// is impossible if we pass matchers by pointers.  It also eases</span></div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">// ownership management as Matcher objects can now be copied like</span></div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment">// plain values.</span></div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span> </div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">// A match result listener that stores the explanation in a string.</span></div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="keyword">class </span>StringMatchResultListener : <span class="keyword">public</span> MatchResultListener {</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>  StringMatchResultListener() : MatchResultListener(&amp;ss_) {}</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span> </div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>  <span class="comment">// Returns the explanation accumulated so far.</span></div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>  std::string str()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> ss_.str(); }</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span> </div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>  <span class="comment">// Clears the explanation accumulated so far.</span></div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>  <span class="keywordtype">void</span> Clear() { ss_.str(<span class="stringliteral">&quot;&quot;</span>); }</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span> </div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  ::std::stringstream ss_;</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span> </div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span>  StringMatchResultListener(<span class="keyword">const</span> StringMatchResultListener&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span>  StringMatchResultListener&amp; operator=(<span class="keyword">const</span> StringMatchResultListener&amp;) =</div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span>      <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span>};</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span> </div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">// Anything inside the &#39;internal&#39; namespace IS INTERNAL IMPLEMENTATION</span></div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment">// and MUST NOT BE USED IN USER CODE!!!</span></div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="keyword">namespace </span>internal {</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span> </div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">// The MatcherCastImpl class template is a helper for implementing</span></div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">// MatcherCast().  We need this helper in order to partially</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">// specialize the implementation of MatcherCast() (C++ allows</span></div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment">// class/struct templates to be partially specialized, but not</span></div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">// function templates.).</span></div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span> </div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">// This general version is used when MatcherCast()&#39;s argument is a</span></div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">// polymorphic matcher (i.e. something that can be converted to a</span></div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">// Matcher but is not one yet; for example, Eq(value)) or a value (for</span></div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">// example, &quot;hello&quot;).</span></div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="keyword">class </span>MatcherCastImpl {</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>  <span class="keyword">static</span> Matcher&lt;T&gt; Cast(<span class="keyword">const</span> M&amp; polymorphic_matcher_or_value) {</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>    <span class="comment">// M can be a polymorphic matcher, in which case we want to use</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>    <span class="comment">// its conversion operator to create Matcher&lt;T&gt;.  Or it can be a value</span></div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>    <span class="comment">// that should be passed to the Matcher&lt;T&gt;&#39;s constructor.</span></div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>    <span class="comment">//</span></div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>    <span class="comment">// We can&#39;t call Matcher&lt;T&gt;(polymorphic_matcher_or_value) when M is a</span></div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span>    <span class="comment">// polymorphic matcher because it&#39;ll be ambiguous if T has an implicit</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span>    <span class="comment">// constructor from M (this usually happens when T has an implicit</span></div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>    <span class="comment">// constructor from any type).</span></div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span>    <span class="comment">//</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span>    <span class="comment">// It won&#39;t work to unconditionally implicit_cast</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span>    <span class="comment">// polymorphic_matcher_or_value to Matcher&lt;T&gt; because it won&#39;t trigger</span></div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span>    <span class="comment">// a user-defined conversion from M to T if one exists (assuming M is</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span>    <span class="comment">// a value).</span></div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span>    <span class="keywordflow">return</span> CastImpl(polymorphic_matcher_or_value,</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span>                    std::is_convertible&lt;M, Matcher&lt;T&gt;&gt;{},</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span>                    std::is_convertible&lt;M, T&gt;{});</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span>  }</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span> </div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>  <span class="keyword">template</span> &lt;<span class="keywordtype">bool</span> Ignore&gt;</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span>  <span class="keyword">static</span> Matcher&lt;T&gt; CastImpl(<span class="keyword">const</span> M&amp; polymorphic_matcher_or_value,</div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span>                             std::true_type <span class="comment">/* convertible_to_matcher */</span>,</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>                             std::integral_constant&lt;bool, Ignore&gt;) {</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>    <span class="comment">// M is implicitly convertible to Matcher&lt;T&gt;, which means that either</span></div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>    <span class="comment">// M is a polymorphic matcher or Matcher&lt;T&gt; has an implicit constructor</span></div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span>    <span class="comment">// from M.  In both cases using the implicit conversion will produce a</span></div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span>    <span class="comment">// matcher.</span></div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span>    <span class="comment">//</span></div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span>    <span class="comment">// Even if T has an implicit constructor from M, it won&#39;t be called because</span></div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>    <span class="comment">// creating Matcher&lt;T&gt; would require a chain of two user-defined conversions</span></div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>    <span class="comment">// (first to create T from M and then to create Matcher&lt;T&gt; from T).</span></div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span>    <span class="keywordflow">return</span> polymorphic_matcher_or_value;</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>  }</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span> </div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>  <span class="comment">// M can&#39;t be implicitly converted to Matcher&lt;T&gt;, so M isn&#39;t a polymorphic</span></div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span>  <span class="comment">// matcher. It&#39;s a value of a type implicitly convertible to T. Use direct</span></div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>  <span class="comment">// initialization to create a matcher.</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>  <span class="keyword">static</span> Matcher&lt;T&gt; CastImpl(<span class="keyword">const</span> M&amp; value,</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span>                             std::false_type <span class="comment">/* convertible_to_matcher */</span>,</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span>                             std::true_type <span class="comment">/* convertible_to_T */</span>) {</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>    <span class="keywordflow">return</span> Matcher&lt;T&gt;(ImplicitCast_&lt;T&gt;(value));</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span>  }</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span> </div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>  <span class="comment">// M can&#39;t be implicitly converted to either Matcher&lt;T&gt; or T. Attempt to use</span></div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  <span class="comment">// polymorphic matcher Eq(value) in this case.</span></div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>  <span class="comment">//</span></div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>  <span class="comment">// Note that we first attempt to perform an implicit cast on the value and</span></div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span>  <span class="comment">// only fall back to the polymorphic Eq() matcher afterwards because the</span></div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span>  <span class="comment">// latter calls bool operator==(const Lhs&amp; lhs, const Rhs&amp; rhs) in the end</span></div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>  <span class="comment">// which might be undefined even when Rhs is implicitly convertible to Lhs</span></div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span>  <span class="comment">// (e.g. std::pair&lt;const int, int&gt; vs. std::pair&lt;int, int&gt;).</span></div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span>  <span class="comment">//</span></div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>  <span class="comment">// We don&#39;t define this method inline as we need the declaration of Eq().</span></div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>  <span class="keyword">static</span> Matcher&lt;T&gt; CastImpl(<span class="keyword">const</span> M&amp; value,</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>                             std::false_type <span class="comment">/* convertible_to_matcher */</span>,</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>                             std::false_type <span class="comment">/* convertible_to_T */</span>);</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>};</div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span> </div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">// This more specialized version is used when MatcherCast()&#39;s argument</span></div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">// is already a Matcher.  This only compiles when type T can be</span></div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment">// statically converted to type U.</span></div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt;</div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="keyword">class </span>MatcherCastImpl&lt;T, Matcher&lt;U&gt;&gt; {</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span>  <span class="keyword">static</span> Matcher&lt;T&gt; Cast(<span class="keyword">const</span> Matcher&lt;U&gt;&amp; source_matcher) {</div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span>    <span class="keywordflow">return</span> Matcher&lt;T&gt;(<span class="keyword">new</span> Impl(source_matcher));</div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span>  }</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span> </div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;T&gt; {</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> Matcher&lt;U&gt;&amp; source_matcher)</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span>        : source_matcher_(source_matcher) {}</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span> </div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>    <span class="comment">// We delegate the matching logic to the source matcher.</span></div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span>    <span class="keywordtype">bool</span> MatchAndExplain(T x, MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>      <span class="keyword">using </span>FromType = <span class="keyword">typename</span> std::remove_cv&lt;<span class="keyword">typename</span> std::remove_pointer&lt;</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>          <span class="keyword">typename</span> std::remove_reference&lt;T&gt;::type&gt;::type&gt;::type;</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span>      <span class="keyword">using </span>ToType = <span class="keyword">typename</span> std::remove_cv&lt;<span class="keyword">typename</span> std::remove_pointer&lt;</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>          <span class="keyword">typename</span> std::remove_reference&lt;U&gt;::type&gt;::type&gt;::type;</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span>      <span class="comment">// Do not allow implicitly converting base*/&amp; to derived*/&amp;.</span></div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span>      <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>          <span class="comment">// Do not trigger if only one of them is a pointer. That implies a</span></div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span>          <span class="comment">// regular conversion and not a down_cast.</span></div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span>          (std::is_pointer&lt;typename std::remove_reference&lt;T&gt;::type&gt;::value !=</div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>           std::is_pointer&lt;typename std::remove_reference&lt;U&gt;::type&gt;::value) ||</div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span>              std::is_same&lt;FromType, ToType&gt;::value ||</div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>              !std::is_base_of&lt;FromType, ToType&gt;::value,</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>          <span class="stringliteral">&quot;Can&#39;t implicitly convert from &lt;base&gt; to &lt;derived&gt;&quot;</span>);</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span> </div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span>      <span class="comment">// Do the cast to `U` explicitly if necessary.</span></div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span>      <span class="comment">// Otherwise, let implicit conversions do the trick.</span></div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>      <span class="keyword">using </span>CastType =</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>          <span class="keyword">typename</span> std::conditional&lt;std::is_convertible&lt;T&amp;, const U&amp;&gt;::value,</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>                                    T&amp;, U&gt;::type;</div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span> </div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span>      <span class="keywordflow">return</span> source_matcher_.MatchAndExplain(<span class="keyword">static_cast&lt;</span>CastType<span class="keyword">&gt;</span>(x),</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>                                             listener);</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span>    }</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span> </div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>      source_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>    }</div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span> </div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span>      source_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>    }</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span> </div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span>    <span class="keyword">const</span> Matcher&lt;U&gt; source_matcher_;</div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span>  };</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>};</div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span> </div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment">// This even more specialized version is used for efficiently casting</span></div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment">// a matcher to its own type.</span></div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="keyword">class </span>MatcherCastImpl&lt;T, Matcher&lt;T&gt;&gt; {</div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>  <span class="keyword">static</span> Matcher&lt;T&gt; Cast(<span class="keyword">const</span> Matcher&lt;T&gt;&amp; matcher) { <span class="keywordflow">return</span> matcher; }</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>};</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span> </div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment">// Template specialization for parameterless Matcher.</span></div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Derived&gt;</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="keyword">class </span>MatcherBaseImpl {</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>  MatcherBaseImpl() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span> </div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>  operator ::testing::Matcher&lt;T&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT(runtime/explicit)</span></div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>    return ::testing::Matcher&lt;T&gt;(<span class="keyword">new</span></div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span>                                 <span class="keyword">typename</span> Derived::template gmock_Impl&lt;T&gt;());</div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>  }</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>};</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span> </div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment">// Template specialization for Matcher with parameters.</span></div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="keyword">template</span> &lt;<span class="keyword">template</span> &lt;<span class="keyword">typename</span>...&gt; <span class="keyword">class </span>Derived, <span class="keyword">typename</span>... Ts&gt;</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span><span class="keyword">class </span>MatcherBaseImpl&lt;Derived&lt;Ts...&gt;&gt; {</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>  <span class="comment">// Mark the constructor explicit for single argument T to avoid implicit</span></div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>  <span class="comment">// conversions.</span></div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> E = std::enable_if&lt;<span class="keyword">sizeof</span>...(Ts) == 1&gt;,</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span>            <span class="keyword">typename</span> E::type* = <span class="keyword">nullptr</span>&gt;</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span>  <span class="keyword">explicit</span> MatcherBaseImpl(Ts... params)</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span>      : params_(std::forward&lt;Ts&gt;(params)...) {}</div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> E = std::enable_if&lt;<span class="keyword">sizeof</span>...(Ts) != 1&gt;,</div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span>            <span class="keyword">typename</span> = <span class="keyword">typename</span> E::type&gt;</div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span>  MatcherBaseImpl(Ts... params)  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span>      : params_(std::forward&lt;Ts&gt;(params)...) {}</div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span> </div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> F&gt;</div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>  operator ::testing::Matcher&lt;F&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT(runtime/explicit)</span></div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>    <span class="keywordflow">return</span> Apply&lt;F&gt;(MakeIndexSequence&lt;<span class="keyword">sizeof</span>...(Ts)&gt;{});</div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>  }</div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span> </div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> F, std::size_t... tuple_ids&gt;</div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>  ::testing::Matcher&lt;F&gt; Apply(IndexSequence&lt;tuple_ids...&gt;)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>    return ::testing::Matcher&lt;F&gt;(</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>        <span class="keyword">new</span> <span class="keyword">typename</span> Derived&lt;Ts...&gt;::template gmock_Impl&lt;F&gt;(</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>            std::get&lt;tuple_ids&gt;(params_)...));</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span>  }</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span> </div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span>  <span class="keyword">const</span> std::tuple&lt;Ts...&gt; params_;</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>};</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span> </div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span>}  <span class="comment">// namespace internal</span></div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span> </div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment">// In order to be safe and clear, casting between different matcher</span></div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment">// types is done explicitly via MatcherCast&lt;T&gt;(m), which takes a</span></div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment">// matcher m and returns a Matcher&lt;T&gt;.  It compiles only when T can be</span></div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span><span class="comment">// statically converted to the argument type of m.</span></div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="keyword">inline</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> MatcherCast(<span class="keyword">const</span> M&amp; matcher) {</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>  <span class="keywordflow">return</span> internal::MatcherCastImpl&lt;T, M&gt;::Cast(matcher);</div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>}</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span> </div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment">// This overload handles polymorphic matchers and values only since</span></div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment">// monomorphic matchers are handled by the next one.</span></div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="keyword">inline</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> SafeMatcherCast(<span class="keyword">const</span> M&amp; polymorphic_matcher_or_value) {</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>  <span class="keywordflow">return</span> MatcherCast&lt;T&gt;(polymorphic_matcher_or_value);</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>}</div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span> </div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment">// This overload handles monomorphic matchers.</span></div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment">//</span></div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment">// In general, if type T can be implicitly converted to type U, we can</span></div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment">// safely convert a Matcher&lt;U&gt; to a Matcher&lt;T&gt; (i.e. Matcher is</span></div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment">// contravariant): just keep a copy of the original Matcher&lt;U&gt;, convert the</span></div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment">// argument from type T to U, and then pass it to the underlying Matcher&lt;U&gt;.</span></div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">// The only exception is when U is a reference and T is not, as the</span></div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment">// underlying Matcher&lt;U&gt; may be interested in the argument&#39;s address, which</span></div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment">// is not preserved in the conversion from T to U.</span></div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt;</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="keyword">inline</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> SafeMatcherCast(<span class="keyword">const</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;U&gt;</a>&amp; matcher) {</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>  <span class="comment">// Enforce that T can be implicitly converted to U.</span></div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>  <span class="keyword">static_assert</span>(std::is_convertible&lt;const T&amp;, const U&amp;&gt;::value,</div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>                <span class="stringliteral">&quot;T must be implicitly convertible to U&quot;</span>);</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>  <span class="comment">// Enforce that we are not converting a non-reference type T to a reference</span></div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>  <span class="comment">// type U.</span></div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>  <span class="keyword">static_assert</span>(std::is_reference&lt;T&gt;::value || !std::is_reference&lt;U&gt;::value,</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span>                <span class="stringliteral">&quot;cannot convert non reference arg to reference&quot;</span>);</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>  <span class="comment">// In case both T and U are arithmetic types, enforce that the</span></div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>  <span class="comment">// conversion is not lossy.</span></div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(T) RawT;</div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(U) RawU;</div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span>  <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> kTIsOther = GMOCK_KIND_OF_(RawT) == internal::kOther;</div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span>  <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> kUIsOther = GMOCK_KIND_OF_(RawU) == internal::kOther;</div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span>  <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span>      kTIsOther || kUIsOther ||</div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>          (internal::LosslessArithmeticConvertible&lt;RawT, RawU&gt;::value),</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span>      <span class="stringliteral">&quot;conversion of arithmetic types must be lossless&quot;</span>);</div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>  <span class="keywordflow">return</span> MatcherCast&lt;T&gt;(matcher);</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>}</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span> </div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment">// A&lt;T&gt;() returns a matcher that matches any value of type T.</span></div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> A();</div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span> </div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment">// Anything inside the &#39;internal&#39; namespace IS INTERNAL IMPLEMENTATION</span></div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="comment">// and MUST NOT BE USED IN USER CODE!!!</span></div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span><span class="keyword">namespace </span>internal {</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span> </div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span><span class="comment">// If the explanation is not empty, prints it to the ostream.</span></div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="keyword">inline</span> <span class="keywordtype">void</span> PrintIfNotEmpty(<span class="keyword">const</span> std::string&amp; explanation,</div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>                            ::std::ostream* os) {</div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span>  <span class="keywordflow">if</span> (explanation != <span class="stringliteral">&quot;&quot;</span> &amp;&amp; os != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>    *os &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; explanation;</div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>  }</div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span>}</div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span> </div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment">// Returns true if the given type name is easy to read by a human.</span></div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">// This is used to decide whether printing the type of a value might</span></div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment">// be helpful.</span></div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span><span class="keyword">inline</span> <span class="keywordtype">bool</span> IsReadableTypeName(<span class="keyword">const</span> std::string&amp; type_name) {</div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>  <span class="comment">// We consider a type name readable if it&#39;s short or doesn&#39;t contain</span></div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span>  <span class="comment">// a template or function type.</span></div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span>  <span class="keywordflow">return</span> (type_name.length() &lt;= 20 ||</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>          type_name.find_first_of(<span class="stringliteral">&quot;&lt;(&quot;</span>) == std::string::npos);</div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>}</div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span> </div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment">// Matches the value against the given matcher, prints the value and explains</span></div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment">// the match result to the listener. Returns the match result.</span></div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment">// &#39;listener&#39; must not be NULL.</span></div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment">// Value cannot be passed by const reference, because some matchers take a</span></div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">// non-const argument.</span></div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Value, <span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="keywordtype">bool</span> MatchPrintAndExplain(Value&amp; value, <span class="keyword">const</span> Matcher&lt;T&gt;&amp; matcher,</div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span>                          MatchResultListener* listener) {</div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span>  <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span>    <span class="comment">// If the listener is not interested, we do not need to construct the</span></div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span>    <span class="comment">// inner explanation.</span></div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span>    <span class="keywordflow">return</span> matcher.Matches(value);</div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span>  }</div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span> </div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span>  StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> match = matcher.MatchAndExplain(value, &amp;inner_listener);</div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span> </div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span>  UniversalPrint(value, listener-&gt;stream());</div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span>  <span class="keyword">const</span> std::string&amp; type_name = GetTypeName&lt;Value&gt;();</div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span>  <span class="keywordflow">if</span> (IsReadableTypeName(type_name))</div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span>    *listener-&gt;stream() &lt;&lt; <span class="stringliteral">&quot; (of type &quot;</span> &lt;&lt; type_name &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span>  PrintIfNotEmpty(inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span> </div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span>  <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span>}</div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span> </div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment">// An internal helper class for doing compile-time loop on a tuple&#39;s</span></div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment">// fields.</span></div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="keyword">class </span>TuplePrefix {</div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span>  <span class="comment">// TuplePrefix&lt;N&gt;::Matches(matcher_tuple, value_tuple) returns true</span></div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span>  <span class="comment">// if and only if the first N fields of matcher_tuple matches</span></div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span>  <span class="comment">// the first N fields of value_tuple, respectively.</span></div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> Matches(<span class="keyword">const</span> MatcherTuple&amp; matcher_tuple,</div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span>                      <span class="keyword">const</span> ValueTuple&amp; value_tuple) {</div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span>    <span class="keywordflow">return</span> TuplePrefix&lt;N - 1&gt;::Matches(matcher_tuple, value_tuple) &amp;&amp;</div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span>           std::get&lt;N - 1&gt;(matcher_tuple).Matches(std::get&lt;N - 1&gt;(value_tuple));</div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span>  }</div>
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span> </div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span>  <span class="comment">// TuplePrefix&lt;N&gt;::ExplainMatchFailuresTo(matchers, values, os)</span></div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span>  <span class="comment">// describes failures in matching the first N fields of matchers</span></div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span>  <span class="comment">// against the first N fields of values.  If there is no failure,</span></div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span>  <span class="comment">// nothing will be streamed to os.</span></div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> ExplainMatchFailuresTo(<span class="keyword">const</span> MatcherTuple&amp; matchers,</div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span>                                     <span class="keyword">const</span> ValueTuple&amp; values,</div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span>                                     ::std::ostream* os) {</div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span>    <span class="comment">// First, describes failures in the first N - 1 fields.</span></div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span>    TuplePrefix&lt;N - 1&gt;::ExplainMatchFailuresTo(matchers, values, os);</div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span> </div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span>    <span class="comment">// Then describes the failure (if any) in the (N - 1)-th (0-based)</span></div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span>    <span class="comment">// field.</span></div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span>    <span class="keyword">typename</span> std::tuple_element&lt;N - 1, MatcherTuple&gt;::type matcher =</div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span>        std::get&lt;N - 1&gt;(matchers);</div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> std::tuple_element&lt;N - 1, ValueTuple&gt;::type Value;</div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>    <span class="keyword">const</span> Value&amp; value = std::get&lt;N - 1&gt;(values);</div>
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>    StringMatchResultListener listener;</div>
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span>    <span class="keywordflow">if</span> (!matcher.MatchAndExplain(value, &amp;listener)) {</div>
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span>      *os &lt;&lt; <span class="stringliteral">&quot;  Expected arg #&quot;</span> &lt;&lt; N - 1 &lt;&lt; <span class="stringliteral">&quot;: &quot;</span>;</div>
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span>      std::get&lt;N - 1&gt;(matchers).DescribeTo(os);</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span>      *os &lt;&lt; <span class="stringliteral">&quot;\n           Actual: &quot;</span>;</div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span>      <span class="comment">// We remove the reference in type Value to prevent the</span></div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span>      <span class="comment">// universal printer from printing the address of value, which</span></div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span>      <span class="comment">// isn&#39;t interesting to the user most of the time.  The</span></div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span>      <span class="comment">// matcher&#39;s MatchAndExplain() method handles the case when</span></div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span>      <span class="comment">// the address is interesting.</span></div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span>      internal::UniversalPrint(value, os);</div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span>      PrintIfNotEmpty(listener.str(), os);</div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span>      *os &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span>    }</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span>  }</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span>};</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span> </div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment">// The base case.</span></div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="keyword">template</span> &lt;&gt;</div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="keyword">class </span>TuplePrefix&lt;0&gt; {</div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> Matches(<span class="keyword">const</span> MatcherTuple&amp; <span class="comment">/* matcher_tuple */</span>,</div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span>                      <span class="keyword">const</span> ValueTuple&amp; <span class="comment">/* value_tuple */</span>) {</div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span>  }</div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span> </div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> ExplainMatchFailuresTo(<span class="keyword">const</span> MatcherTuple&amp; <span class="comment">/* matchers */</span>,</div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span>                                     <span class="keyword">const</span> ValueTuple&amp; <span class="comment">/* values */</span>,</div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span>                                     ::std::ostream* <span class="comment">/* os */</span>) {}</div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span>};</div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span> </div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span><span class="comment">// TupleMatches(matcher_tuple, value_tuple) returns true if and only if</span></div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span><span class="comment">// all matchers in matcher_tuple match the corresponding fields in</span></div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment">// value_tuple.  It is a compiler error if matcher_tuple and</span></div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="comment">// value_tuple have different number of fields or incompatible field</span></div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span><span class="comment">// types.</span></div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span><span class="keywordtype">bool</span> TupleMatches(<span class="keyword">const</span> MatcherTuple&amp; matcher_tuple,</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>                  <span class="keyword">const</span> ValueTuple&amp; value_tuple) {</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>  <span class="comment">// Makes sure that matcher_tuple and value_tuple have the same</span></div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span>  <span class="comment">// number of fields.</span></div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span>  <span class="keyword">static_assert</span>(std::tuple_size&lt;MatcherTuple&gt;::value ==</div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span>                    std::tuple_size&lt;ValueTuple&gt;::value,</div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span>                <span class="stringliteral">&quot;matcher and value have different numbers of fields&quot;</span>);</div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span>  <span class="keywordflow">return</span> TuplePrefix&lt;std::tuple_size&lt;ValueTuple&gt;::value&gt;::Matches(matcher_tuple,</div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span>                                                                  value_tuple);</div>
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span>}</div>
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span> </div>
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span><span class="comment">// Describes failures in matching matchers against values.  If there</span></div>
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span><span class="comment">// is no failure, nothing will be streamed to os.</span></div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple, <span class="keyword">typename</span> ValueTuple&gt;</div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="keywordtype">void</span> ExplainMatchFailureTupleTo(<span class="keyword">const</span> MatcherTuple&amp; matchers,</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span>                                <span class="keyword">const</span> ValueTuple&amp; values, ::std::ostream* os) {</div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span>  TuplePrefix&lt;std::tuple_size&lt;MatcherTuple&gt;::value&gt;::ExplainMatchFailuresTo(</div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span>      matchers, values, os);</div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span>}</div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span> </div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment">// TransformTupleValues and its helper.</span></div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span><span class="comment">//</span></div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span><span class="comment">// TransformTupleValuesHelper hides the internal machinery that</span></div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span><span class="comment">// TransformTupleValues uses to implement a tuple traversal.</span></div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple, <span class="keyword">typename</span> Func, <span class="keyword">typename</span> OutIter&gt;</div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span><span class="keyword">class </span>TransformTupleValuesHelper {</div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span>  typedef ::std::tuple_size&lt;Tuple&gt; TupleSize;</div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span> </div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span>  <span class="comment">// For each member of tuple &#39;t&#39;, taken in order, evaluates &#39;*out++ = f(t)&#39;.</span></div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span>  <span class="comment">// Returns the final value of &#39;out&#39; in case the caller needs it.</span></div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span>  <span class="keyword">static</span> OutIter Run(Func f, <span class="keyword">const</span> Tuple&amp; t, OutIter out) {</div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span>    <span class="keywordflow">return</span> IterateOverTuple&lt;Tuple, TupleSize::value&gt;()(f, t, out);</div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span>  }</div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span> </div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tup, <span class="keywordtype">size_t</span> kRemainingSize&gt;</div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span>  <span class="keyword">struct </span>IterateOverTuple {</div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span>    OutIter operator()(Func f, <span class="keyword">const</span> Tup&amp; t, OutIter out)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span>      *out++ = f(::std::get&lt;TupleSize::value - kRemainingSize&gt;(t));</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>      <span class="keywordflow">return</span> IterateOverTuple&lt;Tup, kRemainingSize - 1&gt;()(f, t, out);</div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span>    }</div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span>  };</div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tup&gt;</div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span>  <span class="keyword">struct </span>IterateOverTuple&lt;Tup, 0&gt; {</div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span>    OutIter operator()(Func <span class="comment">/* f */</span>, <span class="keyword">const</span> Tup&amp; <span class="comment">/* t */</span>, OutIter out)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span>      <span class="keywordflow">return</span> out;</div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span>    }</div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span>  };</div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span>};</div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span> </div>
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span><span class="comment">// Successively invokes &#39;f(element)&#39; on each element of the tuple &#39;t&#39;,</span></div>
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment">// appending each result to the &#39;out&#39; iterator. Returns the final value</span></div>
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="comment">// of &#39;out&#39;.</span></div>
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple, <span class="keyword">typename</span> Func, <span class="keyword">typename</span> OutIter&gt;</div>
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span>OutIter TransformTupleValues(Func f, <span class="keyword">const</span> Tuple&amp; t, OutIter out) {</div>
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span>  <span class="keywordflow">return</span> TransformTupleValuesHelper&lt;Tuple, Func, OutIter&gt;::Run(f, t, out);</div>
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span>}</div>
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span> </div>
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span><span class="comment">// Implements _, a matcher that matches any value of any</span></div>
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span><span class="comment">// type.  This is a polymorphic matcher, so we need a template type</span></div>
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span><span class="comment">// conversion operator to make it appearing as a Matcher&lt;T&gt; for any</span></div>
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span><span class="comment">// type T.</span></div>
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span><span class="keyword">class </span>AnythingMatcher {</div>
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span>  <span class="keyword">using </span>is_gtest_matcher = void;</div>
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span> </div>
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; <span class="comment">/* x */</span>, std::ostream* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span>  }</div>
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span>  <span class="keywordtype">void</span> DescribeTo(std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;is anything&quot;</span>; }</div>
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span>    <span class="comment">// This is mostly for completeness&#39; sake, as it&#39;s not very useful</span></div>
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span>    <span class="comment">// to write Not(A&lt;bool&gt;()).  However we cannot completely rule out</span></div>
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span>    <span class="comment">// such a possibility, and it doesn&#39;t hurt to be prepared.</span></div>
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span>    *os &lt;&lt; <span class="stringliteral">&quot;never matches&quot;</span>;</div>
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span>  }</div>
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span>};</div>
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span> </div>
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span><span class="comment">// Implements the polymorphic IsNull() matcher, which matches any raw or smart</span></div>
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span><span class="comment">// pointer that is NULL.</span></div>
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span><span class="keyword">class </span>IsNullMatcher {</div>
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>er&gt;</div>
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> Pointer&amp; p,</div>
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span>    <span class="keywordflow">return</span> p == <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span>  }</div>
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span> </div>
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;is NULL&quot;</span>; }</div>
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t NULL&quot;</span>; }</div>
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span>};</div>
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span> </div>
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span><span class="comment">// Implements the polymorphic NotNull() matcher, which matches any raw or smart</span></div>
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span><span class="comment">// pointer that is not NULL.</span></div>
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span><span class="keyword">class </span>NotNullMatcher {</div>
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>er&gt;</div>
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> Pointer&amp; p,</div>
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span>    <span class="keywordflow">return</span> p != <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span>  }</div>
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span> </div>
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t NULL&quot;</span>; }</div>
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;is NULL&quot;</span>; }</div>
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span>};</div>
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span> </div>
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span><span class="comment">// Ref(variable) matches any argument that is a reference to</span></div>
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span><span class="comment">// &#39;variable&#39;.  This matcher is polymorphic as it can match any</span></div>
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment">// super type of the type of &#39;variable&#39;.</span></div>
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment">//</span></div>
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span><span class="comment">// The RefMatcher template class implements Ref(variable).  It can</span></div>
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span><span class="comment">// only be instantiated with a reference type.  This prevents a user</span></div>
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span><span class="comment">// from mistakenly using Ref(x) to match a non-reference function</span></div>
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span><span class="comment">// argument.  For example, the following will righteously cause a</span></div>
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span><span class="comment">// compiler error:</span></div>
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span><span class="comment">//</span></div>
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span><span class="comment">//   int n;</span></div>
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span><span class="comment">//   Matcher&lt;int&gt; m1 = Ref(n);   // This won&#39;t compile.</span></div>
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span><span class="comment">//   Matcher&lt;int&amp;&gt; m2 = Ref(n);  // This will compile.</span></div>
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span><span class="keyword">class </span>RefMatcher;</div>
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span> </div>
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span><span class="keyword">class </span>RefMatcher&lt;T&amp;&gt; {</div>
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span>  <span class="comment">// Google Mock is a generic framework and thus needs to support</span></div>
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span>  <span class="comment">// mocking any function types, including those that take non-const</span></div>
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span>  <span class="comment">// reference arguments.  Therefore the template parameter T (and</span></div>
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span>  <span class="comment">// Super below) can be instantiated to either a const type or a</span></div>
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span>  <span class="comment">// non-const type.</span></div>
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno">  810</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span>  <span class="comment">// RefMatcher() takes a T&amp; instead of const T&amp;, as we want the</span></div>
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span>  <span class="comment">// compiler to catch using Ref(const_value) as a matcher for a</span></div>
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span>  <span class="comment">// non-const reference.</span></div>
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span>  <span class="keyword">explicit</span> RefMatcher(T&amp; x) : object_(x) {}  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span> </div>
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Super&gt;</div>
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span>  <span class="keyword">operator</span> Matcher&lt;Super&amp;&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span>    <span class="comment">// By passing object_ (type T&amp;) to Impl(), which expects a Super&amp;,</span></div>
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span>    <span class="comment">// we make sure that Super is a super type of T.  In particular,</span></div>
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span>    <span class="comment">// this catches using Ref(const_value) as a matcher for a</span></div>
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span>    <span class="comment">// non-const reference, as you cannot implicitly convert a const</span></div>
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno">  822</span>    <span class="comment">// reference to a non-const reference.</span></div>
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span>    <span class="keywordflow">return</span> MakeMatcher(<span class="keyword">new</span> Impl&lt;Super&gt;(object_));</div>
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span>  }</div>
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span> </div>
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Super&gt;</div>
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Super&amp;&gt; {</div>
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span>    <span class="keyword">explicit</span> Impl(Super&amp; x) : object_(x) {}  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span> </div>
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span>    <span class="comment">// MatchAndExplain() takes a Super&amp; (as opposed to const Super&amp;)</span></div>
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span>    <span class="comment">// in order to match the interface MatcherInterface&lt;Super&amp;&gt;.</span></div>
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span>    <span class="keywordtype">bool</span> MatchAndExplain(Super&amp; x,</div>
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which is located @&quot;</span> &lt;&lt; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(&amp;x);</div>
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span>      <span class="keywordflow">return</span> &amp;x == &amp;object_;</div>
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span>    }</div>
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span> </div>
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno">  841</span>      *os &lt;&lt; <span class="stringliteral">&quot;references the variable &quot;</span>;</div>
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span>      UniversalPrinter&lt;Super&amp;&gt;::Print(object_, os);</div>
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span>    }</div>
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span> </div>
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span>      *os &lt;&lt; <span class="stringliteral">&quot;does not reference the variable &quot;</span>;</div>
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span>      UniversalPrinter&lt;Super&amp;&gt;::Print(object_, os);</div>
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span>    }</div>
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span> </div>
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span>    <span class="keyword">const</span> Super&amp; object_;</div>
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span>  };</div>
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span> </div>
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span>  T&amp; object_;</div>
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span>};</div>
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span> </div>
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span><span class="comment">// Polymorphic helper functions for narrow and wide string matchers.</span></div>
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span><span class="keyword">inline</span> <span class="keywordtype">bool</span> CaseInsensitiveCStringEquals(<span class="keyword">const</span> <span class="keywordtype">char</span>* lhs, <span class="keyword">const</span> <span class="keywordtype">char</span>* rhs) {</div>
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span>  <span class="keywordflow">return</span> String::CaseInsensitiveCStringEquals(lhs, rhs);</div>
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span>}</div>
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span> </div>
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span><span class="keyword">inline</span> <span class="keywordtype">bool</span> CaseInsensitiveCStringEquals(<span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* lhs,</div>
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span>                                         <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* rhs) {</div>
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span>  <span class="keywordflow">return</span> String::CaseInsensitiveWideCStringEquals(lhs, rhs);</div>
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span>}</div>
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span> </div>
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span><span class="comment">// String comparison for narrow or wide strings that can have embedded NUL</span></div>
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span><span class="comment">// characters.</span></div>
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> StringType&gt;</div>
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span><span class="keywordtype">bool</span> CaseInsensitiveStringEquals(<span class="keyword">const</span> StringType&amp; s1, <span class="keyword">const</span> StringType&amp; s2) {</div>
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span>  <span class="comment">// Are the heads equal?</span></div>
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span>  <span class="keywordflow">if</span> (!CaseInsensitiveCStringEquals(s1.c_str(), s2.c_str())) {</div>
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span>  }</div>
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span> </div>
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span>  <span class="comment">// Skip the equal heads.</span></div>
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span>  <span class="keyword">const</span> <span class="keyword">typename</span> StringType::value_type nul = 0;</div>
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> i1 = s1.find(nul), i2 = s2.find(nul);</div>
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span> </div>
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span>  <span class="comment">// Are we at the end of either s1 or s2?</span></div>
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span>  <span class="keywordflow">if</span> (i1 == StringType::npos || i2 == StringType::npos) {</div>
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span>    <span class="keywordflow">return</span> i1 == i2;</div>
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span>  }</div>
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span> </div>
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span>  <span class="comment">// Are the tails equal?</span></div>
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span>  <span class="keywordflow">return</span> CaseInsensitiveStringEquals(s1.substr(i1 + 1), s2.substr(i2 + 1));</div>
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span>}</div>
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span> </div>
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span><span class="comment">// String matchers.</span></div>
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span> </div>
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span><span class="comment">// Implements equality-based string matchers like StrEq, StrCaseNe, and etc.</span></div>
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> StringType&gt;</div>
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span><span class="keyword">class </span>StrEqualityMatcher {</div>
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span>  StrEqualityMatcher(StringType str, <span class="keywordtype">bool</span> expect_eq, <span class="keywordtype">bool</span> case_sensitive)</div>
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span>      : string_(std::move(str)),</div>
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span>        expect_eq_(expect_eq),</div>
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span>        case_sensitive_(case_sensitive) {}</div>
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span> </div>
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span><span class="preprocessor">#if GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> internal::StringView&amp; s,</div>
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno">  902</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno">  903</span>    <span class="comment">// This should fail to compile if StringView is used with wide</span></div>
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span>    <span class="comment">// strings.</span></div>
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span>    <span class="keyword">const</span> StringType&amp; str = std::string(s);</div>
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span>    <span class="keywordflow">return</span> MatchAndExplain(str, listener);</div>
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span>  }</div>
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span> </div>
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span>  <span class="comment">// Accepts pointer types, particularly:</span></div>
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span>  <span class="comment">//   const char*</span></div>
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span>  <span class="comment">//   char*</span></div>
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span>  <span class="comment">//   const wchar_t*</span></div>
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span>  <span class="comment">//   wchar_t*</span></div>
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharType&gt;</div>
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span>  <span class="keywordtype">bool</span> MatchAndExplain(CharType* s, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span>    <span class="keywordflow">if</span> (s == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span>      <span class="keywordflow">return</span> !expect_eq_;</div>
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span>    }</div>
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span>    <span class="keywordflow">return</span> MatchAndExplain(StringType(s), listener);</div>
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span>  }</div>
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span> </div>
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span>  <span class="comment">// Matches anything that can convert to StringType.</span></div>
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span>  <span class="comment">//</span></div>
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span>  <span class="comment">// This is a template, not just a plain function with const StringType&amp;,</span></div>
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno">  926</span>  <span class="comment">// because StringView has some interfering non-explicit constructors.</span></div>
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcheeStringType&gt;</div>
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> MatcheeStringType&amp; s,</div>
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span>    <span class="keyword">const</span> StringType s2(s);</div>
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> eq = case_sensitive_ ? s2 == string_</div>
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span>                                    : CaseInsensitiveStringEquals(s2, string_);</div>
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span>    <span class="keywordflow">return</span> expect_eq_ == eq;</div>
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span>  }</div>
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span> </div>
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>    DescribeToHelper(expect_eq_, os);</div>
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span>  }</div>
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span> </div>
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span>    DescribeToHelper(!expect_eq_, os);</div>
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span>  }</div>
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span> </div>
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno">  944</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span>  <span class="keywordtype">void</span> DescribeToHelper(<span class="keywordtype">bool</span> expect_eq, ::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span>    *os &lt;&lt; (expect_eq ? <span class="stringliteral">&quot;is &quot;</span> : <span class="stringliteral">&quot;isn&#39;t &quot;</span>);</div>
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span>    *os &lt;&lt; <span class="stringliteral">&quot;equal to &quot;</span>;</div>
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span>    <span class="keywordflow">if</span> (!case_sensitive_) {</div>
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span>      *os &lt;&lt; <span class="stringliteral">&quot;(ignoring case) &quot;</span>;</div>
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span>    }</div>
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span>    UniversalPrint(string_, os);</div>
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span>  }</div>
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span> </div>
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span>  <span class="keyword">const</span> StringType string_;</div>
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> expect_eq_;</div>
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> case_sensitive_;</div>
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span>};</div>
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span> </div>
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span><span class="comment">// Implements the polymorphic HasSubstr(substring) matcher, which</span></div>
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span><span class="comment">// can be used as a Matcher&lt;T&gt; as long as T can be converted to a</span></div>
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span><span class="comment">// string.</span></div>
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> StringType&gt;</div>
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span><span class="keyword">class </span>HasSubstrMatcher {</div>
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span>  <span class="keyword">explicit</span> HasSubstrMatcher(<span class="keyword">const</span> StringType&amp; substring)</div>
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span>      : substring_(substring) {}</div>
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span> </div>
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span><span class="preprocessor">#if GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> internal::StringView&amp; s,</div>
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span>    <span class="comment">// This should fail to compile if StringView is used with wide</span></div>
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span>    <span class="comment">// strings.</span></div>
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span>    <span class="keyword">const</span> StringType&amp; str = std::string(s);</div>
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span>    <span class="keywordflow">return</span> MatchAndExplain(str, listener);</div>
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span>  }</div>
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span> </div>
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span>  <span class="comment">// Accepts pointer types, particularly:</span></div>
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span>  <span class="comment">//   const char*</span></div>
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span>  <span class="comment">//   char*</span></div>
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span>  <span class="comment">//   const wchar_t*</span></div>
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span>  <span class="comment">//   wchar_t*</span></div>
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharType&gt;</div>
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span>  <span class="keywordtype">bool</span> MatchAndExplain(CharType* s, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span>    <span class="keywordflow">return</span> s != <span class="keyword">nullptr</span> &amp;&amp; MatchAndExplain(StringType(s), listener);</div>
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span>  }</div>
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span> </div>
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span>  <span class="comment">// Matches anything that can convert to StringType.</span></div>
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span>  <span class="comment">//</span></div>
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span>  <span class="comment">// This is a template, not just a plain function with const StringType&amp;,</span></div>
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span>  <span class="comment">// because StringView has some interfering non-explicit constructors.</span></div>
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcheeStringType&gt;</div>
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> MatcheeStringType&amp; s,</div>
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span>    <span class="keywordflow">return</span> StringType(s).find(substring_) != StringType::npos;</div>
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span>  }</div>
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span> </div>
<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span>  <span class="comment">// Describes what this matcher matches.</span></div>
<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span>    *os &lt;&lt; <span class="stringliteral">&quot;has substring &quot;</span>;</div>
<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span>    UniversalPrint(substring_, os);</div>
<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span>  }</div>
<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span> </div>
<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span>    *os &lt;&lt; <span class="stringliteral">&quot;has no substring &quot;</span>;</div>
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span>    UniversalPrint(substring_, os);</div>
<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span>  }</div>
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> </div>
<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span>  <span class="keyword">const</span> StringType substring_;</div>
<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span>};</div>
<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span> </div>
<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span><span class="comment">// Implements the polymorphic StartsWith(substring) matcher, which</span></div>
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span><span class="comment">// can be used as a Matcher&lt;T&gt; as long as T can be converted to a</span></div>
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span><span class="comment">// string.</span></div>
<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> StringType&gt;</div>
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span><span class="keyword">class </span>StartsWithMatcher {</div>
<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span>  <span class="keyword">explicit</span> StartsWithMatcher(<span class="keyword">const</span> StringType&amp; prefix) : prefix_(prefix) {}</div>
<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> </div>
<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span><span class="preprocessor">#if GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> internal::StringView&amp; s,</div>
<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span>    <span class="comment">// This should fail to compile if StringView is used with wide</span></div>
<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span>    <span class="comment">// strings.</span></div>
<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span>    <span class="keyword">const</span> StringType&amp; str = std::string(s);</div>
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span>    <span class="keywordflow">return</span> MatchAndExplain(str, listener);</div>
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span>  }</div>
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span> </div>
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span>  <span class="comment">// Accepts pointer types, particularly:</span></div>
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span>  <span class="comment">//   const char*</span></div>
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span>  <span class="comment">//   char*</span></div>
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span>  <span class="comment">//   const wchar_t*</span></div>
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span>  <span class="comment">//   wchar_t*</span></div>
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharType&gt;</div>
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span>  <span class="keywordtype">bool</span> MatchAndExplain(CharType* s, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span>    <span class="keywordflow">return</span> s != <span class="keyword">nullptr</span> &amp;&amp; MatchAndExplain(StringType(s), listener);</div>
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span>  }</div>
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span> </div>
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span>  <span class="comment">// Matches anything that can convert to StringType.</span></div>
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span>  <span class="comment">//</span></div>
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span>  <span class="comment">// This is a template, not just a plain function with const StringType&amp;,</span></div>
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>  <span class="comment">// because StringView has some interfering non-explicit constructors.</span></div>
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcheeStringType&gt;</div>
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> MatcheeStringType&amp; s,</div>
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span>    <span class="keyword">const</span> StringType&amp; s2(s);</div>
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span>    <span class="keywordflow">return</span> s2.length() &gt;= prefix_.length() &amp;&amp;</div>
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span>           s2.substr(0, prefix_.length()) == prefix_;</div>
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span>  }</div>
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span> </div>
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span>    *os &lt;&lt; <span class="stringliteral">&quot;starts with &quot;</span>;</div>
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span>    UniversalPrint(prefix_, os);</div>
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span>  }</div>
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span> </div>
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t start with &quot;</span>;</div>
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>    UniversalPrint(prefix_, os);</div>
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span>  }</div>
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span> </div>
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span>  <span class="keyword">const</span> StringType prefix_;</div>
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span>};</div>
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span> </div>
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span><span class="comment">// Implements the polymorphic EndsWith(substring) matcher, which</span></div>
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span><span class="comment">// can be used as a Matcher&lt;T&gt; as long as T can be converted to a</span></div>
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span><span class="comment">// string.</span></div>
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> StringType&gt;</div>
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span><span class="keyword">class </span>EndsWithMatcher {</div>
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span>  <span class="keyword">explicit</span> EndsWithMatcher(<span class="keyword">const</span> StringType&amp; suffix) : suffix_(suffix) {}</div>
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> </div>
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span><span class="preprocessor">#if GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> internal::StringView&amp; s,</div>
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span>    <span class="comment">// This should fail to compile if StringView is used with wide</span></div>
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span>    <span class="comment">// strings.</span></div>
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span>    <span class="keyword">const</span> StringType&amp; str = std::string(s);</div>
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span>    <span class="keywordflow">return</span> MatchAndExplain(str, listener);</div>
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span>  }</div>
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_INTERNAL_HAS_STRING_VIEW</span></div>
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span> </div>
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span>  <span class="comment">// Accepts pointer types, particularly:</span></div>
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span>  <span class="comment">//   const char*</span></div>
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span>  <span class="comment">//   char*</span></div>
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span>  <span class="comment">//   const wchar_t*</span></div>
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span>  <span class="comment">//   wchar_t*</span></div>
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharType&gt;</div>
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span>  <span class="keywordtype">bool</span> MatchAndExplain(CharType* s, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span>    <span class="keywordflow">return</span> s != <span class="keyword">nullptr</span> &amp;&amp; MatchAndExplain(StringType(s), listener);</div>
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span>  }</div>
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span> </div>
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span>  <span class="comment">// Matches anything that can convert to StringType.</span></div>
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span>  <span class="comment">//</span></div>
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span>  <span class="comment">// This is a template, not just a plain function with const StringType&amp;,</span></div>
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span>  <span class="comment">// because StringView has some interfering non-explicit constructors.</span></div>
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcheeStringType&gt;</div>
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> MatcheeStringType&amp; s,</div>
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span>    <span class="keyword">const</span> StringType&amp; s2(s);</div>
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span>    <span class="keywordflow">return</span> s2.length() &gt;= suffix_.length() &amp;&amp;</div>
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span>           s2.substr(s2.length() - suffix_.length()) == suffix_;</div>
<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span>  }</div>
<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span> </div>
<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span>    *os &lt;&lt; <span class="stringliteral">&quot;ends with &quot;</span>;</div>
<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span>    UniversalPrint(suffix_, os);</div>
<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span>  }</div>
<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span> </div>
<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t end with &quot;</span>;</div>
<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span>    UniversalPrint(suffix_, os);</div>
<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span>  }</div>
<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span> </div>
<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span>  <span class="keyword">const</span> StringType suffix_;</div>
<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span>};</div>
<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span> </div>
<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span><span class="comment">// Implements the polymorphic WhenBase64Unescaped(matcher) matcher, which can be</span></div>
<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span><span class="comment">// used as a Matcher&lt;T&gt; as long as T can be converted to a string.</span></div>
<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span><span class="keyword">class </span>WhenBase64UnescapedMatcher {</div>
<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span>  <span class="keyword">using </span>is_gtest_matcher = void;</div>
<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span> </div>
<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span>  <span class="keyword">explicit</span> WhenBase64UnescapedMatcher(</div>
<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span>      <span class="keyword">const</span> Matcher&lt;const std::string&amp;&gt;&amp; internal_matcher)</div>
<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span>      : internal_matcher_(internal_matcher) {}</div>
<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span> </div>
<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span>  <span class="comment">// Matches anything that can convert to std::string.</span></div>
<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcheeStringType&gt;</div>
<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> MatcheeStringType&amp; s,</div>
<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span>    <span class="keyword">const</span> std::string s2(s);  <span class="comment">// NOLINT (needed for working with string_view).</span></div>
<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span>    std::string unescaped;</div>
<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span>    <span class="keywordflow">if</span> (!internal::Base64Unescape(s2, &amp;unescaped)) {</div>
<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span>      <span class="keywordflow">if</span> (listener != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span>        *listener &lt;&lt; <span class="stringliteral">&quot;is not a valid base64 escaped string&quot;</span>;</div>
<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span>      }</div>
<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span>    }</div>
<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span>    <span class="keywordflow">return</span> MatchPrintAndExplain(unescaped, internal_matcher_, listener);</div>
<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span>  }</div>
<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span> </div>
<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span>    *os &lt;&lt; <span class="stringliteral">&quot;matches after Base64Unescape &quot;</span>;</div>
<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span>    internal_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span>  }</div>
<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> </div>
<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span>    *os &lt;&lt; <span class="stringliteral">&quot;does not match after Base64Unescape &quot;</span>;</div>
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span>    internal_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span>  }</div>
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span> </div>
<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span>  <span class="keyword">const</span> Matcher&lt;const std::string&amp;&gt; internal_matcher_;</div>
<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span>};</div>
<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span> </div>
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span><span class="comment">// Implements a matcher that compares the two fields of a 2-tuple</span></div>
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span><span class="comment">// using one of the ==, &lt;=, &lt;, etc, operators.  The two fields being</span></div>
<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span><span class="comment">// compared don&#39;t have to have the same type.</span></div>
<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span><span class="comment">//</span></div>
<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span><span class="comment">// The matcher defined here is polymorphic (for example, Eq() can be</span></div>
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment">// used to match a std::tuple&lt;int, short&gt;, a std::tuple&lt;const long&amp;, double&gt;,</span></div>
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment">// etc).  Therefore we use a template type conversion operator in the</span></div>
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span><span class="comment">// implementation.</span></div>
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> D, <span class="keyword">typename</span> Op&gt;</div>
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span><span class="keyword">class </span>PairMatchBase {</div>
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2&gt;</div>
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span>  <span class="keyword">operator</span> Matcher&lt;::std::tuple&lt;T1, T2&gt;&gt;() <span class="keyword">const</span> {</div>
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span>    <span class="keywordflow">return</span> Matcher&lt;::std::tuple&lt;T1, T2&gt;&gt;(<span class="keyword">new</span> Impl&lt;const ::std::tuple&lt;T1, T2&gt;&amp;&gt;);</div>
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span>  }</div>
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2&gt;</div>
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span>  <span class="keyword">operator</span> Matcher&lt;const ::std::tuple&lt;T1, T2&gt;&amp;&gt;() <span class="keyword">const</span> {</div>
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span>    <span class="keywordflow">return</span> MakeMatcher(<span class="keyword">new</span> Impl&lt;const ::std::tuple&lt;T1, T2&gt;&amp;&gt;);</div>
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span>  }</div>
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span> </div>
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span>  static ::std::ostream&amp; GetDesc(::std::ostream&amp; os) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span>    <span class="keywordflow">return</span> os &lt;&lt; D::Desc();</div>
<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span>  }</div>
<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span> </div>
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple&gt;</div>
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Tuple&gt; {</div>
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span>    <span class="keywordtype">bool</span> MatchAndExplain(Tuple args,</div>
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span>                         MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span>      <span class="keywordflow">return</span> Op()(::std::get&lt;0&gt;(args), ::std::get&lt;1&gt;(args));</div>
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span>    }</div>
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span>      *os &lt;&lt; <span class="stringliteral">&quot;are &quot;</span> &lt;&lt; GetDesc;</div>
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span>    }</div>
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span>      *os &lt;&lt; <span class="stringliteral">&quot;aren&#39;t &quot;</span> &lt;&lt; GetDesc;</div>
<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span>    }</div>
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span>  };</div>
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span>};</div>
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span> </div>
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span><span class="keyword">class </span>Eq2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Eq2Matcher, AnyEq&gt; {</div>
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;an equal pair&quot;</span>; }</div>
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span>};</div>
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span><span class="keyword">class </span>Ne2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Ne2Matcher, AnyNe&gt; {</div>
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;an unequal pair&quot;</span>; }</div>
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span>};</div>
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span><span class="keyword">class </span>Lt2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Lt2Matcher, AnyLt&gt; {</div>
<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;a pair where the first &lt; the second&quot;</span>; }</div>
<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span>};</div>
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span><span class="keyword">class </span>Gt2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Gt2Matcher, AnyGt&gt; {</div>
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;a pair where the first &gt; the second&quot;</span>; }</div>
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span>};</div>
<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span><span class="keyword">class </span>Le2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Le2Matcher, AnyLe&gt; {</div>
<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;a pair where the first &lt;= the second&quot;</span>; }</div>
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span>};</div>
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span><span class="keyword">class </span>Ge2Matcher : <span class="keyword">public</span> PairMatchBase&lt;Ge2Matcher, AnyGe&gt; {</div>
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* Desc() { <span class="keywordflow">return</span> <span class="stringliteral">&quot;a pair where the first &gt;= the second&quot;</span>; }</div>
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span>};</div>
<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span> </div>
<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span><span class="comment">// Implements the Not(...) matcher for a particular argument type T.</span></div>
<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span><span class="comment">// We do not nest it inside the NotMatcher class template, as that</span></div>
<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span><span class="comment">// will prevent different instantiations of NotMatcher from sharing</span></div>
<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span><span class="comment">// the same NotMatcherImpl&lt;T&gt; class.</span></div>
<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span><span class="keyword">class </span>NotMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;const T&amp;&gt; {</div>
<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span>  <span class="keyword">explicit</span> NotMatcherImpl(<span class="keyword">const</span> Matcher&lt;T&gt;&amp; matcher) : matcher_(matcher) {}</div>
<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span> </div>
<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; x,</div>
<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span>    <span class="keywordflow">return</span> !matcher_.MatchAndExplain(x, listener);</div>
<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span>  }</div>
<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span> </div>
<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span>  }</div>
<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span> </div>
<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span>  }</div>
<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span> </div>
<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span>  <span class="keyword">const</span> Matcher&lt;T&gt; matcher_;</div>
<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span>};</div>
<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span> </div>
<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span><span class="comment">// Implements the Not(m) matcher, which matches a value that doesn&#39;t</span></div>
<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span><span class="comment">// match matcher m.</span></div>
<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span><span class="keyword">class </span>NotMatcher {</div>
<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span>  <span class="keyword">explicit</span> NotMatcher(InnerMatcher matcher) : matcher_(matcher) {}</div>
<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span> </div>
<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span>  <span class="comment">// This template type conversion operator allows Not(m) to be used</span></div>
<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span>  <span class="comment">// to match any type m can match.</span></div>
<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span>  <span class="keyword">operator</span> Matcher&lt;T&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span>    <span class="keywordflow">return</span> Matcher&lt;T&gt;(<span class="keyword">new</span> NotMatcherImpl&lt;T&gt;(SafeMatcherCast&lt;T&gt;(matcher_)));</div>
<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span>  }</div>
<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span> </div>
<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span>  InnerMatcher matcher_;</div>
<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span>};</div>
<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span> </div>
<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span><span class="comment">// Implements the AllOf(m1, m2) matcher for a particular argument type</span></div>
<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span><span class="comment">// T. We do not nest it inside the BothOfMatcher class template, as</span></div>
<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span><span class="comment">// that will prevent different instantiations of BothOfMatcher from</span></div>
<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span><span class="comment">// sharing the same BothOfMatcherImpl&lt;T&gt; class.</span></div>
<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span><span class="keyword">class </span>AllOfMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;const T&amp;&gt; {</div>
<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span>  <span class="keyword">explicit</span> AllOfMatcherImpl(std::vector&lt;Matcher&lt;T&gt;&gt; matchers)</div>
<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span>      : matchers_(std::move(matchers)) {}</div>
<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span> </div>
<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span>    *os &lt;&lt; <span class="stringliteral">&quot;(&quot;</span>;</div>
<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span>      <span class="keywordflow">if</span> (i != 0) *os &lt;&lt; <span class="stringliteral">&quot;) and (&quot;</span>;</div>
<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span>      matchers_[i].DescribeTo(os);</div>
<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span>    }</div>
<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span>    *os &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span>  }</div>
<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span> </div>
<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span>    *os &lt;&lt; <span class="stringliteral">&quot;(&quot;</span>;</div>
<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span>      <span class="keywordflow">if</span> (i != 0) *os &lt;&lt; <span class="stringliteral">&quot;) or (&quot;</span>;</div>
<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span>      matchers_[i].DescribeNegationTo(os);</div>
<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span>    }</div>
<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span>    *os &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span>  }</div>
<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span> </div>
<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; x,</div>
<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span>    <span class="comment">// If either matcher1_ or matcher2_ doesn&#39;t match x, we only need</span></div>
<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span>    <span class="comment">// to explain why one of them fails.</span></div>
<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span>    std::string all_match_result;</div>
<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span> </div>
<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span>      StringMatchResultListener slistener;</div>
<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span>      <span class="keywordflow">if</span> (matchers_[i].MatchAndExplain(x, &amp;slistener)) {</div>
<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span>        <span class="keywordflow">if</span> (all_match_result.empty()) {</div>
<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span>          all_match_result = slistener.str();</div>
<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span>        } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span>          std::string result = slistener.str();</div>
<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span>          <span class="keywordflow">if</span> (!result.empty()) {</div>
<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span>            all_match_result += <span class="stringliteral">&quot;, and &quot;</span>;</div>
<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span>            all_match_result += result;</div>
<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span>          }</div>
<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span>        }</div>
<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span>        *listener &lt;&lt; slistener.str();</div>
<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span>      }</div>
<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span>    }</div>
<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span> </div>
<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span>    <span class="comment">// Otherwise we need to explain why *both* of them match.</span></div>
<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span>    *listener &lt;&lt; all_match_result;</div>
<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span>  }</div>
<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span> </div>
<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span>  <span class="keyword">const</span> std::vector&lt;Matcher&lt;T&gt;&gt; matchers_;</div>
<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span>};</div>
<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span> </div>
<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span><span class="comment">// VariadicMatcher is used for the variadic implementation of</span></div>
<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span><span class="comment">// AllOf(m_1, m_2, ...) and AnyOf(m_1, m_2, ...).</span></div>
<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span><span class="comment">// CombiningMatcher&lt;T&gt; is used to recursively combine the provided matchers</span></div>
<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span><span class="comment">// (of type Args...).</span></div>
<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span><span class="keyword">template</span> &lt;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">class </span>CombiningMatcher, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="keyword">class </span>VariadicMatcher {</div>
<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span>  VariadicMatcher(<span class="keyword">const</span> Args&amp;... matchers)  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span>      : matchers_(matchers...) {</div>
<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span>    <span class="keyword">static_assert</span>(<span class="keyword">sizeof</span>...(Args) &gt; 0, <span class="stringliteral">&quot;Must have at least one matcher.&quot;</span>);</div>
<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span>  }</div>
<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span> </div>
<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span>  VariadicMatcher(<span class="keyword">const</span> VariadicMatcher&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span>  VariadicMatcher&amp; operator=(<span class="keyword">const</span> VariadicMatcher&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span> </div>
<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span>  <span class="comment">// This template type conversion operator allows an</span></div>
<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span>  <span class="comment">// VariadicMatcher&lt;Matcher1, Matcher2...&gt; object to match any type that</span></div>
<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span>  <span class="comment">// all of the provided matchers (Matcher1, Matcher2, ...) can match.</span></div>
<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span>  <span class="keyword">operator</span> Matcher&lt;T&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span>    std::vector&lt;Matcher&lt;T&gt;&gt; values;</div>
<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span>    CreateVariadicMatcher&lt;T&gt;(&amp;values, std::integral_constant&lt;size_t, 0&gt;());</div>
<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span>    <span class="keywordflow">return</span> Matcher&lt;T&gt;(<span class="keyword">new</span> CombiningMatcher&lt;T&gt;(std::move(values)));</div>
<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span>  }</div>
<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span> </div>
<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> I&gt;</div>
<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span>  <span class="keywordtype">void</span> CreateVariadicMatcher(std::vector&lt;Matcher&lt;T&gt;&gt;* values,</div>
<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span>                             std::integral_constant&lt;size_t, I&gt;)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span>    values-&gt;push_back(SafeMatcherCast&lt;T&gt;(std::get&lt;I&gt;(matchers_)));</div>
<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span>    CreateVariadicMatcher&lt;T&gt;(values, std::integral_constant&lt;size_t, I + 1&gt;());</div>
<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span>  }</div>
<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span> </div>
<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span>  <span class="keywordtype">void</span> CreateVariadicMatcher(</div>
<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span>      std::vector&lt;Matcher&lt;T&gt;&gt;*,</div>
<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span>      std::integral_constant&lt;<span class="keywordtype">size_t</span>, <span class="keyword">sizeof</span>...(Args)&gt;)<span class="keyword"> const </span>{}</div>
<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span> </div>
<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span>  std::tuple&lt;Args...&gt; matchers_;</div>
<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span>};</div>
<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span> </div>
<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span><span class="keyword">using </span>AllOfMatcher = VariadicMatcher&lt;AllOfMatcherImpl, Args...&gt;;</div>
<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span> </div>
<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span><span class="comment">// Implements the AnyOf(m1, m2) matcher for a particular argument type</span></div>
<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span><span class="comment">// T.  We do not nest it inside the AnyOfMatcher class template, as</span></div>
<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span><span class="comment">// that will prevent different instantiations of AnyOfMatcher from</span></div>
<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span><span class="comment">// sharing the same EitherOfMatcherImpl&lt;T&gt; class.</span></div>
<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span><span class="keyword">class </span>AnyOfMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;const T&amp;&gt; {</div>
<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span>  <span class="keyword">explicit</span> AnyOfMatcherImpl(std::vector&lt;Matcher&lt;T&gt;&gt; matchers)</div>
<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span>      : matchers_(std::move(matchers)) {}</div>
<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span> </div>
<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span>    *os &lt;&lt; <span class="stringliteral">&quot;(&quot;</span>;</div>
<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"> 1387</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"> 1388</span>      <span class="keywordflow">if</span> (i != 0) *os &lt;&lt; <span class="stringliteral">&quot;) or (&quot;</span>;</div>
<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span>      matchers_[i].DescribeTo(os);</div>
<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span>    }</div>
<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span>    *os &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span>  }</div>
<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span> </div>
<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01395" name="l01395"></a><span class="lineno"> 1395</span>    *os &lt;&lt; <span class="stringliteral">&quot;(&quot;</span>;</div>
<div class="line"><a id="l01396" name="l01396"></a><span class="lineno"> 1396</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01397" name="l01397"></a><span class="lineno"> 1397</span>      <span class="keywordflow">if</span> (i != 0) *os &lt;&lt; <span class="stringliteral">&quot;) and (&quot;</span>;</div>
<div class="line"><a id="l01398" name="l01398"></a><span class="lineno"> 1398</span>      matchers_[i].DescribeNegationTo(os);</div>
<div class="line"><a id="l01399" name="l01399"></a><span class="lineno"> 1399</span>    }</div>
<div class="line"><a id="l01400" name="l01400"></a><span class="lineno"> 1400</span>    *os &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01401" name="l01401"></a><span class="lineno"> 1401</span>  }</div>
<div class="line"><a id="l01402" name="l01402"></a><span class="lineno"> 1402</span> </div>
<div class="line"><a id="l01403" name="l01403"></a><span class="lineno"> 1403</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; x,</div>
<div class="line"><a id="l01404" name="l01404"></a><span class="lineno"> 1404</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01405" name="l01405"></a><span class="lineno"> 1405</span>    std::string no_match_result;</div>
<div class="line"><a id="l01406" name="l01406"></a><span class="lineno"> 1406</span> </div>
<div class="line"><a id="l01407" name="l01407"></a><span class="lineno"> 1407</span>    <span class="comment">// If either matcher1_ or matcher2_ matches x, we just need to</span></div>
<div class="line"><a id="l01408" name="l01408"></a><span class="lineno"> 1408</span>    <span class="comment">// explain why *one* of them matches.</span></div>
<div class="line"><a id="l01409" name="l01409"></a><span class="lineno"> 1409</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; matchers_.size(); ++i) {</div>
<div class="line"><a id="l01410" name="l01410"></a><span class="lineno"> 1410</span>      StringMatchResultListener slistener;</div>
<div class="line"><a id="l01411" name="l01411"></a><span class="lineno"> 1411</span>      <span class="keywordflow">if</span> (matchers_[i].MatchAndExplain(x, &amp;slistener)) {</div>
<div class="line"><a id="l01412" name="l01412"></a><span class="lineno"> 1412</span>        *listener &lt;&lt; slistener.str();</div>
<div class="line"><a id="l01413" name="l01413"></a><span class="lineno"> 1413</span>        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01414" name="l01414"></a><span class="lineno"> 1414</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01415" name="l01415"></a><span class="lineno"> 1415</span>        <span class="keywordflow">if</span> (no_match_result.empty()) {</div>
<div class="line"><a id="l01416" name="l01416"></a><span class="lineno"> 1416</span>          no_match_result = slistener.str();</div>
<div class="line"><a id="l01417" name="l01417"></a><span class="lineno"> 1417</span>        } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01418" name="l01418"></a><span class="lineno"> 1418</span>          std::string result = slistener.str();</div>
<div class="line"><a id="l01419" name="l01419"></a><span class="lineno"> 1419</span>          <span class="keywordflow">if</span> (!result.empty()) {</div>
<div class="line"><a id="l01420" name="l01420"></a><span class="lineno"> 1420</span>            no_match_result += <span class="stringliteral">&quot;, and &quot;</span>;</div>
<div class="line"><a id="l01421" name="l01421"></a><span class="lineno"> 1421</span>            no_match_result += result;</div>
<div class="line"><a id="l01422" name="l01422"></a><span class="lineno"> 1422</span>          }</div>
<div class="line"><a id="l01423" name="l01423"></a><span class="lineno"> 1423</span>        }</div>
<div class="line"><a id="l01424" name="l01424"></a><span class="lineno"> 1424</span>      }</div>
<div class="line"><a id="l01425" name="l01425"></a><span class="lineno"> 1425</span>    }</div>
<div class="line"><a id="l01426" name="l01426"></a><span class="lineno"> 1426</span> </div>
<div class="line"><a id="l01427" name="l01427"></a><span class="lineno"> 1427</span>    <span class="comment">// Otherwise we need to explain why *both* of them fail.</span></div>
<div class="line"><a id="l01428" name="l01428"></a><span class="lineno"> 1428</span>    *listener &lt;&lt; no_match_result;</div>
<div class="line"><a id="l01429" name="l01429"></a><span class="lineno"> 1429</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01430" name="l01430"></a><span class="lineno"> 1430</span>  }</div>
<div class="line"><a id="l01431" name="l01431"></a><span class="lineno"> 1431</span> </div>
<div class="line"><a id="l01432" name="l01432"></a><span class="lineno"> 1432</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01433" name="l01433"></a><span class="lineno"> 1433</span>  <span class="keyword">const</span> std::vector&lt;Matcher&lt;T&gt;&gt; matchers_;</div>
<div class="line"><a id="l01434" name="l01434"></a><span class="lineno"> 1434</span>};</div>
<div class="line"><a id="l01435" name="l01435"></a><span class="lineno"> 1435</span> </div>
<div class="line"><a id="l01436" name="l01436"></a><span class="lineno"> 1436</span><span class="comment">// AnyOfMatcher is used for the variadic implementation of AnyOf(m_1, m_2, ...).</span></div>
<div class="line"><a id="l01437" name="l01437"></a><span class="lineno"> 1437</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l01438" name="l01438"></a><span class="lineno"> 1438</span><span class="keyword">using </span>AnyOfMatcher = VariadicMatcher&lt;AnyOfMatcherImpl, Args...&gt;;</div>
<div class="line"><a id="l01439" name="l01439"></a><span class="lineno"> 1439</span> </div>
<div class="line"><a id="l01440" name="l01440"></a><span class="lineno"> 1440</span><span class="comment">// ConditionalMatcher is the implementation of Conditional(cond, m1, m2)</span></div>
<div class="line"><a id="l01441" name="l01441"></a><span class="lineno"> 1441</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTrue, <span class="keyword">typename</span> MatcherFalse&gt;</div>
<div class="line"><a id="l01442" name="l01442"></a><span class="lineno"> 1442</span><span class="keyword">class </span>ConditionalMatcher {</div>
<div class="line"><a id="l01443" name="l01443"></a><span class="lineno"> 1443</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01444" name="l01444"></a><span class="lineno"> 1444</span>  ConditionalMatcher(<span class="keywordtype">bool</span> condition, MatcherTrue matcher_true,</div>
<div class="line"><a id="l01445" name="l01445"></a><span class="lineno"> 1445</span>                     MatcherFalse matcher_false)</div>
<div class="line"><a id="l01446" name="l01446"></a><span class="lineno"> 1446</span>      : condition_(condition),</div>
<div class="line"><a id="l01447" name="l01447"></a><span class="lineno"> 1447</span>        matcher_true_(std::move(matcher_true)),</div>
<div class="line"><a id="l01448" name="l01448"></a><span class="lineno"> 1448</span>        matcher_false_(std::move(matcher_false)) {}</div>
<div class="line"><a id="l01449" name="l01449"></a><span class="lineno"> 1449</span> </div>
<div class="line"><a id="l01450" name="l01450"></a><span class="lineno"> 1450</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01451" name="l01451"></a><span class="lineno"> 1451</span>  <span class="keyword">operator</span> Matcher&lt;T&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT(runtime/explicit)</span></div>
<div class="line"><a id="l01452" name="l01452"></a><span class="lineno"> 1452</span>    <span class="keywordflow">return</span> condition_ ? SafeMatcherCast&lt;T&gt;(matcher_true_)</div>
<div class="line"><a id="l01453" name="l01453"></a><span class="lineno"> 1453</span>                      : SafeMatcherCast&lt;T&gt;(matcher_false_);</div>
<div class="line"><a id="l01454" name="l01454"></a><span class="lineno"> 1454</span>  }</div>
<div class="line"><a id="l01455" name="l01455"></a><span class="lineno"> 1455</span> </div>
<div class="line"><a id="l01456" name="l01456"></a><span class="lineno"> 1456</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01457" name="l01457"></a><span class="lineno"> 1457</span>  <span class="keywordtype">bool</span> condition_;</div>
<div class="line"><a id="l01458" name="l01458"></a><span class="lineno"> 1458</span>  MatcherTrue matcher_true_;</div>
<div class="line"><a id="l01459" name="l01459"></a><span class="lineno"> 1459</span>  MatcherFalse matcher_false_;</div>
<div class="line"><a id="l01460" name="l01460"></a><span class="lineno"> 1460</span>};</div>
<div class="line"><a id="l01461" name="l01461"></a><span class="lineno"> 1461</span> </div>
<div class="line"><a id="l01462" name="l01462"></a><span class="lineno"> 1462</span><span class="comment">// Wrapper for implementation of Any/AllOfArray().</span></div>
<div class="line"><a id="l01463" name="l01463"></a><span class="lineno"> 1463</span><span class="keyword">template</span> &lt;<span class="keyword">template</span> &lt;<span class="keyword">class</span>&gt; <span class="keyword">class </span>MatcherImpl, <span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01464" name="l01464"></a><span class="lineno"> 1464</span><span class="keyword">class </span>SomeOfArrayMatcher {</div>
<div class="line"><a id="l01465" name="l01465"></a><span class="lineno"> 1465</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01466" name="l01466"></a><span class="lineno"> 1466</span>  <span class="comment">// Constructs the matcher from a sequence of element values or</span></div>
<div class="line"><a id="l01467" name="l01467"></a><span class="lineno"> 1467</span>  <span class="comment">// element matchers.</span></div>
<div class="line"><a id="l01468" name="l01468"></a><span class="lineno"> 1468</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l01469" name="l01469"></a><span class="lineno"> 1469</span>  SomeOfArrayMatcher(Iter first, Iter last) : matchers_(first, last) {}</div>
<div class="line"><a id="l01470" name="l01470"></a><span class="lineno"> 1470</span> </div>
<div class="line"><a id="l01471" name="l01471"></a><span class="lineno"> 1471</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> U&gt;</div>
<div class="line"><a id="l01472" name="l01472"></a><span class="lineno"> 1472</span>  <span class="keyword">operator</span> Matcher&lt;U&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01473" name="l01473"></a><span class="lineno"> 1473</span>    <span class="keyword">using </span>RawU = <span class="keyword">typename</span> std::decay&lt;U&gt;::type;</div>
<div class="line"><a id="l01474" name="l01474"></a><span class="lineno"> 1474</span>    std::vector&lt;Matcher&lt;RawU&gt;&gt; matchers;</div>
<div class="line"><a id="l01475" name="l01475"></a><span class="lineno"> 1475</span>    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; matcher : matchers_) {</div>
<div class="line"><a id="l01476" name="l01476"></a><span class="lineno"> 1476</span>      matchers.push_back(MatcherCast&lt;RawU&gt;(matcher));</div>
<div class="line"><a id="l01477" name="l01477"></a><span class="lineno"> 1477</span>    }</div>
<div class="line"><a id="l01478" name="l01478"></a><span class="lineno"> 1478</span>    <span class="keywordflow">return</span> Matcher&lt;U&gt;(<span class="keyword">new</span> MatcherImpl&lt;RawU&gt;(std::move(matchers)));</div>
<div class="line"><a id="l01479" name="l01479"></a><span class="lineno"> 1479</span>  }</div>
<div class="line"><a id="l01480" name="l01480"></a><span class="lineno"> 1480</span> </div>
<div class="line"><a id="l01481" name="l01481"></a><span class="lineno"> 1481</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01482" name="l01482"></a><span class="lineno"> 1482</span>  const ::std::vector&lt;T&gt; matchers_;</div>
<div class="line"><a id="l01483" name="l01483"></a><span class="lineno"> 1483</span>};</div>
<div class="line"><a id="l01484" name="l01484"></a><span class="lineno"> 1484</span> </div>
<div class="line"><a id="l01485" name="l01485"></a><span class="lineno"> 1485</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01486" name="l01486"></a><span class="lineno"> 1486</span><span class="keyword">using </span>AllOfArrayMatcher = SomeOfArrayMatcher&lt;AllOfMatcherImpl, T&gt;;</div>
<div class="line"><a id="l01487" name="l01487"></a><span class="lineno"> 1487</span> </div>
<div class="line"><a id="l01488" name="l01488"></a><span class="lineno"> 1488</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01489" name="l01489"></a><span class="lineno"> 1489</span><span class="keyword">using </span>AnyOfArrayMatcher = SomeOfArrayMatcher&lt;AnyOfMatcherImpl, T&gt;;</div>
<div class="line"><a id="l01490" name="l01490"></a><span class="lineno"> 1490</span> </div>
<div class="line"><a id="l01491" name="l01491"></a><span class="lineno"> 1491</span><span class="comment">// Used for implementing Truly(pred), which turns a predicate into a</span></div>
<div class="line"><a id="l01492" name="l01492"></a><span class="lineno"> 1492</span><span class="comment">// matcher.</span></div>
<div class="line"><a id="l01493" name="l01493"></a><span class="lineno"> 1493</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Predicate&gt;</div>
<div class="line"><a id="l01494" name="l01494"></a><span class="lineno"> 1494</span><span class="keyword">class </span>TrulyMatcher {</div>
<div class="line"><a id="l01495" name="l01495"></a><span class="lineno"> 1495</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01496" name="l01496"></a><span class="lineno"> 1496</span>  <span class="keyword">explicit</span> TrulyMatcher(Predicate pred) : predicate_(pred) {}</div>
<div class="line"><a id="l01497" name="l01497"></a><span class="lineno"> 1497</span> </div>
<div class="line"><a id="l01498" name="l01498"></a><span class="lineno"> 1498</span>  <span class="comment">// This method template allows Truly(pred) to be used as a matcher</span></div>
<div class="line"><a id="l01499" name="l01499"></a><span class="lineno"> 1499</span>  <span class="comment">// for type T where T is the argument type of predicate &#39;pred&#39;.  The</span></div>
<div class="line"><a id="l01500" name="l01500"></a><span class="lineno"> 1500</span>  <span class="comment">// argument is passed by reference as the predicate may be</span></div>
<div class="line"><a id="l01501" name="l01501"></a><span class="lineno"> 1501</span>  <span class="comment">// interested in the address of the argument.</span></div>
<div class="line"><a id="l01502" name="l01502"></a><span class="lineno"> 1502</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01503" name="l01503"></a><span class="lineno"> 1503</span>  <span class="keywordtype">bool</span> MatchAndExplain(T&amp; x,  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01504" name="l01504"></a><span class="lineno"> 1504</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01505" name="l01505"></a><span class="lineno"> 1505</span>    <span class="comment">// Without the if-statement, MSVC sometimes warns about converting</span></div>
<div class="line"><a id="l01506" name="l01506"></a><span class="lineno"> 1506</span>    <span class="comment">// a value to bool (warning 4800).</span></div>
<div class="line"><a id="l01507" name="l01507"></a><span class="lineno"> 1507</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01508" name="l01508"></a><span class="lineno"> 1508</span>    <span class="comment">// We cannot write &#39;return !!predicate_(x);&#39; as that doesn&#39;t work</span></div>
<div class="line"><a id="l01509" name="l01509"></a><span class="lineno"> 1509</span>    <span class="comment">// when predicate_(x) returns a class convertible to bool but</span></div>
<div class="line"><a id="l01510" name="l01510"></a><span class="lineno"> 1510</span>    <span class="comment">// having no operator!().</span></div>
<div class="line"><a id="l01511" name="l01511"></a><span class="lineno"> 1511</span>    <span class="keywordflow">if</span> (predicate_(x)) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01512" name="l01512"></a><span class="lineno"> 1512</span>    *listener &lt;&lt; <span class="stringliteral">&quot;didn&#39;t satisfy the given predicate&quot;</span>;</div>
<div class="line"><a id="l01513" name="l01513"></a><span class="lineno"> 1513</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01514" name="l01514"></a><span class="lineno"> 1514</span>  }</div>
<div class="line"><a id="l01515" name="l01515"></a><span class="lineno"> 1515</span> </div>
<div class="line"><a id="l01516" name="l01516"></a><span class="lineno"> 1516</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01517" name="l01517"></a><span class="lineno"> 1517</span>    *os &lt;&lt; <span class="stringliteral">&quot;satisfies the given predicate&quot;</span>;</div>
<div class="line"><a id="l01518" name="l01518"></a><span class="lineno"> 1518</span>  }</div>
<div class="line"><a id="l01519" name="l01519"></a><span class="lineno"> 1519</span> </div>
<div class="line"><a id="l01520" name="l01520"></a><span class="lineno"> 1520</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01521" name="l01521"></a><span class="lineno"> 1521</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t satisfy the given predicate&quot;</span>;</div>
<div class="line"><a id="l01522" name="l01522"></a><span class="lineno"> 1522</span>  }</div>
<div class="line"><a id="l01523" name="l01523"></a><span class="lineno"> 1523</span> </div>
<div class="line"><a id="l01524" name="l01524"></a><span class="lineno"> 1524</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01525" name="l01525"></a><span class="lineno"> 1525</span>  Predicate predicate_;</div>
<div class="line"><a id="l01526" name="l01526"></a><span class="lineno"> 1526</span>};</div>
<div class="line"><a id="l01527" name="l01527"></a><span class="lineno"> 1527</span> </div>
<div class="line"><a id="l01528" name="l01528"></a><span class="lineno"> 1528</span><span class="comment">// Used for implementing Matches(matcher), which turns a matcher into</span></div>
<div class="line"><a id="l01529" name="l01529"></a><span class="lineno"> 1529</span><span class="comment">// a predicate.</span></div>
<div class="line"><a id="l01530" name="l01530"></a><span class="lineno"> 1530</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l01531" name="l01531"></a><span class="lineno"> 1531</span><span class="keyword">class </span>MatcherAsPredicate {</div>
<div class="line"><a id="l01532" name="l01532"></a><span class="lineno"> 1532</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01533" name="l01533"></a><span class="lineno"> 1533</span>  <span class="keyword">explicit</span> MatcherAsPredicate(M matcher) : matcher_(matcher) {}</div>
<div class="line"><a id="l01534" name="l01534"></a><span class="lineno"> 1534</span> </div>
<div class="line"><a id="l01535" name="l01535"></a><span class="lineno"> 1535</span>  <span class="comment">// This template operator() allows Matches(m) to be used as a</span></div>
<div class="line"><a id="l01536" name="l01536"></a><span class="lineno"> 1536</span>  <span class="comment">// predicate on type T where m is a matcher on type T.</span></div>
<div class="line"><a id="l01537" name="l01537"></a><span class="lineno"> 1537</span>  <span class="comment">//</span></div>
<div class="line"><a id="l01538" name="l01538"></a><span class="lineno"> 1538</span>  <span class="comment">// The argument x is passed by reference instead of by value, as</span></div>
<div class="line"><a id="l01539" name="l01539"></a><span class="lineno"> 1539</span>  <span class="comment">// some matcher may be interested in its address (e.g. as in</span></div>
<div class="line"><a id="l01540" name="l01540"></a><span class="lineno"> 1540</span>  <span class="comment">// Matches(Ref(n))(x)).</span></div>
<div class="line"><a id="l01541" name="l01541"></a><span class="lineno"> 1541</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01542" name="l01542"></a><span class="lineno"> 1542</span>  <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> T&amp; x)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01543" name="l01543"></a><span class="lineno"> 1543</span>    <span class="comment">// We let matcher_ commit to a particular type here instead of</span></div>
<div class="line"><a id="l01544" name="l01544"></a><span class="lineno"> 1544</span>    <span class="comment">// when the MatcherAsPredicate object was constructed.  This</span></div>
<div class="line"><a id="l01545" name="l01545"></a><span class="lineno"> 1545</span>    <span class="comment">// allows us to write Matches(m) where m is a polymorphic matcher</span></div>
<div class="line"><a id="l01546" name="l01546"></a><span class="lineno"> 1546</span>    <span class="comment">// (e.g. Eq(5)).</span></div>
<div class="line"><a id="l01547" name="l01547"></a><span class="lineno"> 1547</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01548" name="l01548"></a><span class="lineno"> 1548</span>    <span class="comment">// If we write Matcher&lt;T&gt;(matcher_).Matches(x) here, it won&#39;t</span></div>
<div class="line"><a id="l01549" name="l01549"></a><span class="lineno"> 1549</span>    <span class="comment">// compile when matcher_ has type Matcher&lt;const T&amp;&gt;; if we write</span></div>
<div class="line"><a id="l01550" name="l01550"></a><span class="lineno"> 1550</span>    <span class="comment">// Matcher&lt;const T&amp;&gt;(matcher_).Matches(x) here, it won&#39;t compile</span></div>
<div class="line"><a id="l01551" name="l01551"></a><span class="lineno"> 1551</span>    <span class="comment">// when matcher_ has type Matcher&lt;T&gt;; if we just write</span></div>
<div class="line"><a id="l01552" name="l01552"></a><span class="lineno"> 1552</span>    <span class="comment">// matcher_.Matches(x), it won&#39;t compile when matcher_ is</span></div>
<div class="line"><a id="l01553" name="l01553"></a><span class="lineno"> 1553</span>    <span class="comment">// polymorphic, e.g. Eq(5).</span></div>
<div class="line"><a id="l01554" name="l01554"></a><span class="lineno"> 1554</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01555" name="l01555"></a><span class="lineno"> 1555</span>    <span class="comment">// MatcherCast&lt;const T&amp;&gt;() is necessary for making the code work</span></div>
<div class="line"><a id="l01556" name="l01556"></a><span class="lineno"> 1556</span>    <span class="comment">// in all of the above situations.</span></div>
<div class="line"><a id="l01557" name="l01557"></a><span class="lineno"> 1557</span>    <span class="keywordflow">return</span> MatcherCast&lt;const T&amp;&gt;(matcher_).Matches(x);</div>
<div class="line"><a id="l01558" name="l01558"></a><span class="lineno"> 1558</span>  }</div>
<div class="line"><a id="l01559" name="l01559"></a><span class="lineno"> 1559</span> </div>
<div class="line"><a id="l01560" name="l01560"></a><span class="lineno"> 1560</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01561" name="l01561"></a><span class="lineno"> 1561</span>  M matcher_;</div>
<div class="line"><a id="l01562" name="l01562"></a><span class="lineno"> 1562</span>};</div>
<div class="line"><a id="l01563" name="l01563"></a><span class="lineno"> 1563</span> </div>
<div class="line"><a id="l01564" name="l01564"></a><span class="lineno"> 1564</span><span class="comment">// For implementing ASSERT_THAT() and EXPECT_THAT().  The template</span></div>
<div class="line"><a id="l01565" name="l01565"></a><span class="lineno"> 1565</span><span class="comment">// argument M must be a type that can be converted to a matcher.</span></div>
<div class="line"><a id="l01566" name="l01566"></a><span class="lineno"> 1566</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l01567" name="l01567"></a><span class="lineno"> 1567</span><span class="keyword">class </span>PredicateFormatterFromMatcher {</div>
<div class="line"><a id="l01568" name="l01568"></a><span class="lineno"> 1568</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01569" name="l01569"></a><span class="lineno"> 1569</span>  <span class="keyword">explicit</span> PredicateFormatterFromMatcher(M m) : matcher_(std::move(m)) {}</div>
<div class="line"><a id="l01570" name="l01570"></a><span class="lineno"> 1570</span> </div>
<div class="line"><a id="l01571" name="l01571"></a><span class="lineno"> 1571</span>  <span class="comment">// This template () operator allows a PredicateFormatterFromMatcher</span></div>
<div class="line"><a id="l01572" name="l01572"></a><span class="lineno"> 1572</span>  <span class="comment">// object to act as a predicate-formatter suitable for using with</span></div>
<div class="line"><a id="l01573" name="l01573"></a><span class="lineno"> 1573</span>  <span class="comment">// Google Test&#39;s EXPECT_PRED_FORMAT1() macro.</span></div>
<div class="line"><a id="l01574" name="l01574"></a><span class="lineno"> 1574</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01575" name="l01575"></a><span class="lineno"> 1575</span>  AssertionResult operator()(<span class="keyword">const</span> <span class="keywordtype">char</span>* value_text, <span class="keyword">const</span> T&amp; x)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01576" name="l01576"></a><span class="lineno"> 1576</span>    <span class="comment">// We convert matcher_ to a Matcher&lt;const T&amp;&gt; *now* instead of</span></div>
<div class="line"><a id="l01577" name="l01577"></a><span class="lineno"> 1577</span>    <span class="comment">// when the PredicateFormatterFromMatcher object was constructed,</span></div>
<div class="line"><a id="l01578" name="l01578"></a><span class="lineno"> 1578</span>    <span class="comment">// as matcher_ may be polymorphic (e.g. NotNull()) and we won&#39;t</span></div>
<div class="line"><a id="l01579" name="l01579"></a><span class="lineno"> 1579</span>    <span class="comment">// know which type to instantiate it to until we actually see the</span></div>
<div class="line"><a id="l01580" name="l01580"></a><span class="lineno"> 1580</span>    <span class="comment">// type of x here.</span></div>
<div class="line"><a id="l01581" name="l01581"></a><span class="lineno"> 1581</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01582" name="l01582"></a><span class="lineno"> 1582</span>    <span class="comment">// We write SafeMatcherCast&lt;const T&amp;&gt;(matcher_) instead of</span></div>
<div class="line"><a id="l01583" name="l01583"></a><span class="lineno"> 1583</span>    <span class="comment">// Matcher&lt;const T&amp;&gt;(matcher_), as the latter won&#39;t compile when</span></div>
<div class="line"><a id="l01584" name="l01584"></a><span class="lineno"> 1584</span>    <span class="comment">// matcher_ has type Matcher&lt;T&gt; (e.g. An&lt;int&gt;()).</span></div>
<div class="line"><a id="l01585" name="l01585"></a><span class="lineno"> 1585</span>    <span class="comment">// We don&#39;t write MatcherCast&lt;const T&amp;&gt; either, as that allows</span></div>
<div class="line"><a id="l01586" name="l01586"></a><span class="lineno"> 1586</span>    <span class="comment">// potentially unsafe downcasting of the matcher argument.</span></div>
<div class="line"><a id="l01587" name="l01587"></a><span class="lineno"> 1587</span>    <span class="keyword">const</span> Matcher&lt;const T&amp;&gt; matcher = SafeMatcherCast&lt;const T&amp;&gt;(matcher_);</div>
<div class="line"><a id="l01588" name="l01588"></a><span class="lineno"> 1588</span> </div>
<div class="line"><a id="l01589" name="l01589"></a><span class="lineno"> 1589</span>    <span class="comment">// The expected path here is that the matcher should match (i.e. that most</span></div>
<div class="line"><a id="l01590" name="l01590"></a><span class="lineno"> 1590</span>    <span class="comment">// tests pass) so optimize for this case.</span></div>
<div class="line"><a id="l01591" name="l01591"></a><span class="lineno"> 1591</span>    <span class="keywordflow">if</span> (matcher.Matches(x)) {</div>
<div class="line"><a id="l01592" name="l01592"></a><span class="lineno"> 1592</span>      <span class="keywordflow">return</span> AssertionSuccess();</div>
<div class="line"><a id="l01593" name="l01593"></a><span class="lineno"> 1593</span>    }</div>
<div class="line"><a id="l01594" name="l01594"></a><span class="lineno"> 1594</span> </div>
<div class="line"><a id="l01595" name="l01595"></a><span class="lineno"> 1595</span>    ::std::stringstream ss;</div>
<div class="line"><a id="l01596" name="l01596"></a><span class="lineno"> 1596</span>    ss &lt;&lt; <span class="stringliteral">&quot;Value of: &quot;</span> &lt;&lt; value_text &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span></div>
<div class="line"><a id="l01597" name="l01597"></a><span class="lineno"> 1597</span>       &lt;&lt; <span class="stringliteral">&quot;Expected: &quot;</span>;</div>
<div class="line"><a id="l01598" name="l01598"></a><span class="lineno"> 1598</span>    matcher.DescribeTo(&amp;ss);</div>
<div class="line"><a id="l01599" name="l01599"></a><span class="lineno"> 1599</span> </div>
<div class="line"><a id="l01600" name="l01600"></a><span class="lineno"> 1600</span>    <span class="comment">// Rerun the matcher to &quot;PrintAndExplain&quot; the failure.</span></div>
<div class="line"><a id="l01601" name="l01601"></a><span class="lineno"> 1601</span>    StringMatchResultListener listener;</div>
<div class="line"><a id="l01602" name="l01602"></a><span class="lineno"> 1602</span>    <span class="keywordflow">if</span> (MatchPrintAndExplain(x, matcher, &amp;listener)) {</div>
<div class="line"><a id="l01603" name="l01603"></a><span class="lineno"> 1603</span>      ss &lt;&lt; <span class="stringliteral">&quot;\n  The matcher failed on the initial attempt; but passed when &quot;</span></div>
<div class="line"><a id="l01604" name="l01604"></a><span class="lineno"> 1604</span>            <span class="stringliteral">&quot;rerun to generate the explanation.&quot;</span>;</div>
<div class="line"><a id="l01605" name="l01605"></a><span class="lineno"> 1605</span>    }</div>
<div class="line"><a id="l01606" name="l01606"></a><span class="lineno"> 1606</span>    ss &lt;&lt; <span class="stringliteral">&quot;\n  Actual: &quot;</span> &lt;&lt; listener.str();</div>
<div class="line"><a id="l01607" name="l01607"></a><span class="lineno"> 1607</span>    <span class="keywordflow">return</span> AssertionFailure() &lt;&lt; ss.str();</div>
<div class="line"><a id="l01608" name="l01608"></a><span class="lineno"> 1608</span>  }</div>
<div class="line"><a id="l01609" name="l01609"></a><span class="lineno"> 1609</span> </div>
<div class="line"><a id="l01610" name="l01610"></a><span class="lineno"> 1610</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01611" name="l01611"></a><span class="lineno"> 1611</span>  <span class="keyword">const</span> M matcher_;</div>
<div class="line"><a id="l01612" name="l01612"></a><span class="lineno"> 1612</span>};</div>
<div class="line"><a id="l01613" name="l01613"></a><span class="lineno"> 1613</span> </div>
<div class="line"><a id="l01614" name="l01614"></a><span class="lineno"> 1614</span><span class="comment">// A helper function for converting a matcher to a predicate-formatter</span></div>
<div class="line"><a id="l01615" name="l01615"></a><span class="lineno"> 1615</span><span class="comment">// without the user needing to explicitly write the type.  This is</span></div>
<div class="line"><a id="l01616" name="l01616"></a><span class="lineno"> 1616</span><span class="comment">// used for implementing ASSERT_THAT() and EXPECT_THAT().</span></div>
<div class="line"><a id="l01617" name="l01617"></a><span class="lineno"> 1617</span><span class="comment">// Implementation detail: &#39;matcher&#39; is received by-value to force decaying.</span></div>
<div class="line"><a id="l01618" name="l01618"></a><span class="lineno"> 1618</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l01619" name="l01619"></a><span class="lineno"> 1619</span><span class="keyword">inline</span> PredicateFormatterFromMatcher&lt;M&gt; MakePredicateFormatterFromMatcher(</div>
<div class="line"><a id="l01620" name="l01620"></a><span class="lineno"> 1620</span>    M matcher) {</div>
<div class="line"><a id="l01621" name="l01621"></a><span class="lineno"> 1621</span>  <span class="keywordflow">return</span> PredicateFormatterFromMatcher&lt;M&gt;(std::move(matcher));</div>
<div class="line"><a id="l01622" name="l01622"></a><span class="lineno"> 1622</span>}</div>
<div class="line"><a id="l01623" name="l01623"></a><span class="lineno"> 1623</span> </div>
<div class="line"><a id="l01624" name="l01624"></a><span class="lineno"> 1624</span><span class="comment">// Implements the polymorphic IsNan() matcher, which matches any floating type</span></div>
<div class="line"><a id="l01625" name="l01625"></a><span class="lineno"> 1625</span><span class="comment">// value that is Nan.</span></div>
<div class="line"><a id="l01626" name="l01626"></a><span class="lineno"> 1626</span><span class="keyword">class </span>IsNanMatcher {</div>
<div class="line"><a id="l01627" name="l01627"></a><span class="lineno"> 1627</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01628" name="l01628"></a><span class="lineno"> 1628</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> FloatType&gt;</div>
<div class="line"><a id="l01629" name="l01629"></a><span class="lineno"> 1629</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> FloatType&amp; f,</div>
<div class="line"><a id="l01630" name="l01630"></a><span class="lineno"> 1630</span>                       MatchResultListener* <span class="comment">/* listener */</span>)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01631" name="l01631"></a><span class="lineno"> 1631</span>    <span class="keywordflow">return</span> (::std::isnan)(f);</div>
<div class="line"><a id="l01632" name="l01632"></a><span class="lineno"> 1632</span>  }</div>
<div class="line"><a id="l01633" name="l01633"></a><span class="lineno"> 1633</span> </div>
<div class="line"><a id="l01634" name="l01634"></a><span class="lineno"> 1634</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;is NaN&quot;</span>; }</div>
<div class="line"><a id="l01635" name="l01635"></a><span class="lineno"> 1635</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{ *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t NaN&quot;</span>; }</div>
<div class="line"><a id="l01636" name="l01636"></a><span class="lineno"> 1636</span>};</div>
<div class="line"><a id="l01637" name="l01637"></a><span class="lineno"> 1637</span> </div>
<div class="line"><a id="l01638" name="l01638"></a><span class="lineno"> 1638</span><span class="comment">// Implements the polymorphic floating point equality matcher, which matches</span></div>
<div class="line"><a id="l01639" name="l01639"></a><span class="lineno"> 1639</span><span class="comment">// two float values using ULP-based approximation or, optionally, a</span></div>
<div class="line"><a id="l01640" name="l01640"></a><span class="lineno"> 1640</span><span class="comment">// user-specified epsilon.  The template is meant to be instantiated with</span></div>
<div class="line"><a id="l01641" name="l01641"></a><span class="lineno"> 1641</span><span class="comment">// FloatType being either float or double.</span></div>
<div class="line"><a id="l01642" name="l01642"></a><span class="lineno"> 1642</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> FloatType&gt;</div>
<div class="line"><a id="l01643" name="l01643"></a><span class="lineno"> 1643</span><span class="keyword">class </span>FloatingEqMatcher {</div>
<div class="line"><a id="l01644" name="l01644"></a><span class="lineno"> 1644</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01645" name="l01645"></a><span class="lineno"> 1645</span>  <span class="comment">// Constructor for FloatingEqMatcher.</span></div>
<div class="line"><a id="l01646" name="l01646"></a><span class="lineno"> 1646</span>  <span class="comment">// The matcher&#39;s input will be compared with expected.  The matcher treats two</span></div>
<div class="line"><a id="l01647" name="l01647"></a><span class="lineno"> 1647</span>  <span class="comment">// NANs as equal if nan_eq_nan is true.  Otherwise, under IEEE standards,</span></div>
<div class="line"><a id="l01648" name="l01648"></a><span class="lineno"> 1648</span>  <span class="comment">// equality comparisons between NANs will always return false.  We specify a</span></div>
<div class="line"><a id="l01649" name="l01649"></a><span class="lineno"> 1649</span>  <span class="comment">// negative max_abs_error_ term to indicate that ULP-based approximation will</span></div>
<div class="line"><a id="l01650" name="l01650"></a><span class="lineno"> 1650</span>  <span class="comment">// be used for comparison.</span></div>
<div class="line"><a id="l01651" name="l01651"></a><span class="lineno"> 1651</span>  FloatingEqMatcher(FloatType expected, <span class="keywordtype">bool</span> nan_eq_nan)</div>
<div class="line"><a id="l01652" name="l01652"></a><span class="lineno"> 1652</span>      : expected_(expected), nan_eq_nan_(nan_eq_nan), max_abs_error_(-1) {}</div>
<div class="line"><a id="l01653" name="l01653"></a><span class="lineno"> 1653</span> </div>
<div class="line"><a id="l01654" name="l01654"></a><span class="lineno"> 1654</span>  <span class="comment">// Constructor that supports a user-specified max_abs_error that will be used</span></div>
<div class="line"><a id="l01655" name="l01655"></a><span class="lineno"> 1655</span>  <span class="comment">// for comparison instead of ULP-based approximation.  The max absolute</span></div>
<div class="line"><a id="l01656" name="l01656"></a><span class="lineno"> 1656</span>  <span class="comment">// should be non-negative.</span></div>
<div class="line"><a id="l01657" name="l01657"></a><span class="lineno"> 1657</span>  FloatingEqMatcher(FloatType expected, <span class="keywordtype">bool</span> nan_eq_nan,</div>
<div class="line"><a id="l01658" name="l01658"></a><span class="lineno"> 1658</span>                    FloatType max_abs_error)</div>
<div class="line"><a id="l01659" name="l01659"></a><span class="lineno"> 1659</span>      : expected_(expected),</div>
<div class="line"><a id="l01660" name="l01660"></a><span class="lineno"> 1660</span>        nan_eq_nan_(nan_eq_nan),</div>
<div class="line"><a id="l01661" name="l01661"></a><span class="lineno"> 1661</span>        max_abs_error_(max_abs_error) {</div>
<div class="line"><a id="l01662" name="l01662"></a><span class="lineno"> 1662</span>    GTEST_CHECK_(max_abs_error &gt;= 0)</div>
<div class="line"><a id="l01663" name="l01663"></a><span class="lineno"> 1663</span>        &lt;&lt; <span class="stringliteral">&quot;, where max_abs_error is&quot;</span> &lt;&lt; max_abs_error;</div>
<div class="line"><a id="l01664" name="l01664"></a><span class="lineno"> 1664</span>  }</div>
<div class="line"><a id="l01665" name="l01665"></a><span class="lineno"> 1665</span> </div>
<div class="line"><a id="l01666" name="l01666"></a><span class="lineno"> 1666</span>  <span class="comment">// Implements floating point equality matcher as a Matcher&lt;T&gt;.</span></div>
<div class="line"><a id="l01667" name="l01667"></a><span class="lineno"> 1667</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l01668" name="l01668"></a><span class="lineno"> 1668</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;T&gt; {</div>
<div class="line"><a id="l01669" name="l01669"></a><span class="lineno"> 1669</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l01670" name="l01670"></a><span class="lineno"> 1670</span>    Impl(FloatType expected, <span class="keywordtype">bool</span> nan_eq_nan, FloatType max_abs_error)</div>
<div class="line"><a id="l01671" name="l01671"></a><span class="lineno"> 1671</span>        : expected_(expected),</div>
<div class="line"><a id="l01672" name="l01672"></a><span class="lineno"> 1672</span>          nan_eq_nan_(nan_eq_nan),</div>
<div class="line"><a id="l01673" name="l01673"></a><span class="lineno"> 1673</span>          max_abs_error_(max_abs_error) {}</div>
<div class="line"><a id="l01674" name="l01674"></a><span class="lineno"> 1674</span> </div>
<div class="line"><a id="l01675" name="l01675"></a><span class="lineno"> 1675</span>    <span class="keywordtype">bool</span> MatchAndExplain(T value,</div>
<div class="line"><a id="l01676" name="l01676"></a><span class="lineno"> 1676</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01677" name="l01677"></a><span class="lineno"> 1677</span>      <span class="keyword">const</span> FloatingPoint&lt;FloatType&gt; actual(value), expected(expected_);</div>
<div class="line"><a id="l01678" name="l01678"></a><span class="lineno"> 1678</span> </div>
<div class="line"><a id="l01679" name="l01679"></a><span class="lineno"> 1679</span>      <span class="comment">// Compares NaNs first, if nan_eq_nan_ is true.</span></div>
<div class="line"><a id="l01680" name="l01680"></a><span class="lineno"> 1680</span>      <span class="keywordflow">if</span> (actual.is_nan() || expected.is_nan()) {</div>
<div class="line"><a id="l01681" name="l01681"></a><span class="lineno"> 1681</span>        <span class="keywordflow">if</span> (actual.is_nan() &amp;&amp; expected.is_nan()) {</div>
<div class="line"><a id="l01682" name="l01682"></a><span class="lineno"> 1682</span>          <span class="keywordflow">return</span> nan_eq_nan_;</div>
<div class="line"><a id="l01683" name="l01683"></a><span class="lineno"> 1683</span>        }</div>
<div class="line"><a id="l01684" name="l01684"></a><span class="lineno"> 1684</span>        <span class="comment">// One is nan; the other is not nan.</span></div>
<div class="line"><a id="l01685" name="l01685"></a><span class="lineno"> 1685</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01686" name="l01686"></a><span class="lineno"> 1686</span>      }</div>
<div class="line"><a id="l01687" name="l01687"></a><span class="lineno"> 1687</span>      <span class="keywordflow">if</span> (HasMaxAbsError()) {</div>
<div class="line"><a id="l01688" name="l01688"></a><span class="lineno"> 1688</span>        <span class="comment">// We perform an equality check so that inf will match inf, regardless</span></div>
<div class="line"><a id="l01689" name="l01689"></a><span class="lineno"> 1689</span>        <span class="comment">// of error bounds.  If the result of value - expected_ would result in</span></div>
<div class="line"><a id="l01690" name="l01690"></a><span class="lineno"> 1690</span>        <span class="comment">// overflow or if either value is inf, the default result is infinity,</span></div>
<div class="line"><a id="l01691" name="l01691"></a><span class="lineno"> 1691</span>        <span class="comment">// which should only match if max_abs_error_ is also infinity.</span></div>
<div class="line"><a id="l01692" name="l01692"></a><span class="lineno"> 1692</span>        <span class="keywordflow">if</span> (value == expected_) {</div>
<div class="line"><a id="l01693" name="l01693"></a><span class="lineno"> 1693</span>          <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01694" name="l01694"></a><span class="lineno"> 1694</span>        }</div>
<div class="line"><a id="l01695" name="l01695"></a><span class="lineno"> 1695</span> </div>
<div class="line"><a id="l01696" name="l01696"></a><span class="lineno"> 1696</span>        <span class="keyword">const</span> FloatType diff = value - expected_;</div>
<div class="line"><a id="l01697" name="l01697"></a><span class="lineno"> 1697</span>        <span class="keywordflow">if</span> (::std::fabs(diff) &lt;= max_abs_error_) {</div>
<div class="line"><a id="l01698" name="l01698"></a><span class="lineno"> 1698</span>          <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01699" name="l01699"></a><span class="lineno"> 1699</span>        }</div>
<div class="line"><a id="l01700" name="l01700"></a><span class="lineno"> 1700</span> </div>
<div class="line"><a id="l01701" name="l01701"></a><span class="lineno"> 1701</span>        <span class="keywordflow">if</span> (listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l01702" name="l01702"></a><span class="lineno"> 1702</span>          *listener &lt;&lt; <span class="stringliteral">&quot;which is &quot;</span> &lt;&lt; diff &lt;&lt; <span class="stringliteral">&quot; from &quot;</span> &lt;&lt; expected_;</div>
<div class="line"><a id="l01703" name="l01703"></a><span class="lineno"> 1703</span>        }</div>
<div class="line"><a id="l01704" name="l01704"></a><span class="lineno"> 1704</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01705" name="l01705"></a><span class="lineno"> 1705</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01706" name="l01706"></a><span class="lineno"> 1706</span>        <span class="keywordflow">return</span> actual.AlmostEquals(expected);</div>
<div class="line"><a id="l01707" name="l01707"></a><span class="lineno"> 1707</span>      }</div>
<div class="line"><a id="l01708" name="l01708"></a><span class="lineno"> 1708</span>    }</div>
<div class="line"><a id="l01709" name="l01709"></a><span class="lineno"> 1709</span> </div>
<div class="line"><a id="l01710" name="l01710"></a><span class="lineno"> 1710</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01711" name="l01711"></a><span class="lineno"> 1711</span>      <span class="comment">// os-&gt;precision() returns the previously set precision, which we</span></div>
<div class="line"><a id="l01712" name="l01712"></a><span class="lineno"> 1712</span>      <span class="comment">// store to restore the ostream to its original configuration</span></div>
<div class="line"><a id="l01713" name="l01713"></a><span class="lineno"> 1713</span>      <span class="comment">// after outputting.</span></div>
<div class="line"><a id="l01714" name="l01714"></a><span class="lineno"> 1714</span>      const ::std::streamsize old_precision =</div>
<div class="line"><a id="l01715" name="l01715"></a><span class="lineno"> 1715</span>          os-&gt;precision(::std::numeric_limits&lt;FloatType&gt;::digits10 + 2);</div>
<div class="line"><a id="l01716" name="l01716"></a><span class="lineno"> 1716</span>      <span class="keywordflow">if</span> (FloatingPoint&lt;FloatType&gt;(expected_).is_nan()) {</div>
<div class="line"><a id="l01717" name="l01717"></a><span class="lineno"> 1717</span>        <span class="keywordflow">if</span> (nan_eq_nan_) {</div>
<div class="line"><a id="l01718" name="l01718"></a><span class="lineno"> 1718</span>          *os &lt;&lt; <span class="stringliteral">&quot;is NaN&quot;</span>;</div>
<div class="line"><a id="l01719" name="l01719"></a><span class="lineno"> 1719</span>        } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01720" name="l01720"></a><span class="lineno"> 1720</span>          *os &lt;&lt; <span class="stringliteral">&quot;never matches&quot;</span>;</div>
<div class="line"><a id="l01721" name="l01721"></a><span class="lineno"> 1721</span>        }</div>
<div class="line"><a id="l01722" name="l01722"></a><span class="lineno"> 1722</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01723" name="l01723"></a><span class="lineno"> 1723</span>        *os &lt;&lt; <span class="stringliteral">&quot;is approximately &quot;</span> &lt;&lt; expected_;</div>
<div class="line"><a id="l01724" name="l01724"></a><span class="lineno"> 1724</span>        <span class="keywordflow">if</span> (HasMaxAbsError()) {</div>
<div class="line"><a id="l01725" name="l01725"></a><span class="lineno"> 1725</span>          *os &lt;&lt; <span class="stringliteral">&quot; (absolute error &lt;= &quot;</span> &lt;&lt; max_abs_error_ &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01726" name="l01726"></a><span class="lineno"> 1726</span>        }</div>
<div class="line"><a id="l01727" name="l01727"></a><span class="lineno"> 1727</span>      }</div>
<div class="line"><a id="l01728" name="l01728"></a><span class="lineno"> 1728</span>      os-&gt;precision(old_precision);</div>
<div class="line"><a id="l01729" name="l01729"></a><span class="lineno"> 1729</span>    }</div>
<div class="line"><a id="l01730" name="l01730"></a><span class="lineno"> 1730</span> </div>
<div class="line"><a id="l01731" name="l01731"></a><span class="lineno"> 1731</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01732" name="l01732"></a><span class="lineno"> 1732</span>      <span class="comment">// As before, get original precision.</span></div>
<div class="line"><a id="l01733" name="l01733"></a><span class="lineno"> 1733</span>      const ::std::streamsize old_precision =</div>
<div class="line"><a id="l01734" name="l01734"></a><span class="lineno"> 1734</span>          os-&gt;precision(::std::numeric_limits&lt;FloatType&gt;::digits10 + 2);</div>
<div class="line"><a id="l01735" name="l01735"></a><span class="lineno"> 1735</span>      <span class="keywordflow">if</span> (FloatingPoint&lt;FloatType&gt;(expected_).is_nan()) {</div>
<div class="line"><a id="l01736" name="l01736"></a><span class="lineno"> 1736</span>        <span class="keywordflow">if</span> (nan_eq_nan_) {</div>
<div class="line"><a id="l01737" name="l01737"></a><span class="lineno"> 1737</span>          *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t NaN&quot;</span>;</div>
<div class="line"><a id="l01738" name="l01738"></a><span class="lineno"> 1738</span>        } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01739" name="l01739"></a><span class="lineno"> 1739</span>          *os &lt;&lt; <span class="stringliteral">&quot;is anything&quot;</span>;</div>
<div class="line"><a id="l01740" name="l01740"></a><span class="lineno"> 1740</span>        }</div>
<div class="line"><a id="l01741" name="l01741"></a><span class="lineno"> 1741</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01742" name="l01742"></a><span class="lineno"> 1742</span>        *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t approximately &quot;</span> &lt;&lt; expected_;</div>
<div class="line"><a id="l01743" name="l01743"></a><span class="lineno"> 1743</span>        <span class="keywordflow">if</span> (HasMaxAbsError()) {</div>
<div class="line"><a id="l01744" name="l01744"></a><span class="lineno"> 1744</span>          *os &lt;&lt; <span class="stringliteral">&quot; (absolute error &gt; &quot;</span> &lt;&lt; max_abs_error_ &lt;&lt; <span class="stringliteral">&quot;)&quot;</span>;</div>
<div class="line"><a id="l01745" name="l01745"></a><span class="lineno"> 1745</span>        }</div>
<div class="line"><a id="l01746" name="l01746"></a><span class="lineno"> 1746</span>      }</div>
<div class="line"><a id="l01747" name="l01747"></a><span class="lineno"> 1747</span>      <span class="comment">// Restore original precision.</span></div>
<div class="line"><a id="l01748" name="l01748"></a><span class="lineno"> 1748</span>      os-&gt;precision(old_precision);</div>
<div class="line"><a id="l01749" name="l01749"></a><span class="lineno"> 1749</span>    }</div>
<div class="line"><a id="l01750" name="l01750"></a><span class="lineno"> 1750</span> </div>
<div class="line"><a id="l01751" name="l01751"></a><span class="lineno"> 1751</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l01752" name="l01752"></a><span class="lineno"> 1752</span>    <span class="keywordtype">bool</span> HasMaxAbsError()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> max_abs_error_ &gt;= 0; }</div>
<div class="line"><a id="l01753" name="l01753"></a><span class="lineno"> 1753</span> </div>
<div class="line"><a id="l01754" name="l01754"></a><span class="lineno"> 1754</span>    <span class="keyword">const</span> FloatType expected_;</div>
<div class="line"><a id="l01755" name="l01755"></a><span class="lineno"> 1755</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> nan_eq_nan_;</div>
<div class="line"><a id="l01756" name="l01756"></a><span class="lineno"> 1756</span>    <span class="comment">// max_abs_error will be used for value comparison when &gt;= 0.</span></div>
<div class="line"><a id="l01757" name="l01757"></a><span class="lineno"> 1757</span>    <span class="keyword">const</span> FloatType max_abs_error_;</div>
<div class="line"><a id="l01758" name="l01758"></a><span class="lineno"> 1758</span>  };</div>
<div class="line"><a id="l01759" name="l01759"></a><span class="lineno"> 1759</span> </div>
<div class="line"><a id="l01760" name="l01760"></a><span class="lineno"> 1760</span>  <span class="comment">// The following 3 type conversion operators allow FloatEq(expected) and</span></div>
<div class="line"><a id="l01761" name="l01761"></a><span class="lineno"> 1761</span>  <span class="comment">// NanSensitiveFloatEq(expected) to be used as a Matcher&lt;float&gt;, a</span></div>
<div class="line"><a id="l01762" name="l01762"></a><span class="lineno"> 1762</span>  <span class="comment">// Matcher&lt;const float&amp;&gt;, or a Matcher&lt;float&amp;&gt;, but nothing else.</span></div>
<div class="line"><a id="l01763" name="l01763"></a><span class="lineno"> 1763</span>  <span class="keyword">operator</span> Matcher&lt;FloatType&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01764" name="l01764"></a><span class="lineno"> 1764</span>    <span class="keywordflow">return</span> MakeMatcher(</div>
<div class="line"><a id="l01765" name="l01765"></a><span class="lineno"> 1765</span>        <span class="keyword">new</span> Impl&lt;FloatType&gt;(expected_, nan_eq_nan_, max_abs_error_));</div>
<div class="line"><a id="l01766" name="l01766"></a><span class="lineno"> 1766</span>  }</div>
<div class="line"><a id="l01767" name="l01767"></a><span class="lineno"> 1767</span> </div>
<div class="line"><a id="l01768" name="l01768"></a><span class="lineno"> 1768</span>  <span class="keyword">operator</span> Matcher&lt;const FloatType&amp;&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01769" name="l01769"></a><span class="lineno"> 1769</span>    <span class="keywordflow">return</span> MakeMatcher(</div>
<div class="line"><a id="l01770" name="l01770"></a><span class="lineno"> 1770</span>        <span class="keyword">new</span> Impl&lt;const FloatType&amp;&gt;(expected_, nan_eq_nan_, max_abs_error_));</div>
<div class="line"><a id="l01771" name="l01771"></a><span class="lineno"> 1771</span>  }</div>
<div class="line"><a id="l01772" name="l01772"></a><span class="lineno"> 1772</span> </div>
<div class="line"><a id="l01773" name="l01773"></a><span class="lineno"> 1773</span>  <span class="keyword">operator</span> Matcher&lt;FloatType&amp;&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01774" name="l01774"></a><span class="lineno"> 1774</span>    <span class="keywordflow">return</span> MakeMatcher(</div>
<div class="line"><a id="l01775" name="l01775"></a><span class="lineno"> 1775</span>        <span class="keyword">new</span> Impl&lt;FloatType&amp;&gt;(expected_, nan_eq_nan_, max_abs_error_));</div>
<div class="line"><a id="l01776" name="l01776"></a><span class="lineno"> 1776</span>  }</div>
<div class="line"><a id="l01777" name="l01777"></a><span class="lineno"> 1777</span> </div>
<div class="line"><a id="l01778" name="l01778"></a><span class="lineno"> 1778</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01779" name="l01779"></a><span class="lineno"> 1779</span>  <span class="keyword">const</span> FloatType expected_;</div>
<div class="line"><a id="l01780" name="l01780"></a><span class="lineno"> 1780</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> nan_eq_nan_;</div>
<div class="line"><a id="l01781" name="l01781"></a><span class="lineno"> 1781</span>  <span class="comment">// max_abs_error will be used for value comparison when &gt;= 0.</span></div>
<div class="line"><a id="l01782" name="l01782"></a><span class="lineno"> 1782</span>  <span class="keyword">const</span> FloatType max_abs_error_;</div>
<div class="line"><a id="l01783" name="l01783"></a><span class="lineno"> 1783</span>};</div>
<div class="line"><a id="l01784" name="l01784"></a><span class="lineno"> 1784</span> </div>
<div class="line"><a id="l01785" name="l01785"></a><span class="lineno"> 1785</span><span class="comment">// A 2-tuple (&quot;binary&quot;) wrapper around FloatingEqMatcher:</span></div>
<div class="line"><a id="l01786" name="l01786"></a><span class="lineno"> 1786</span><span class="comment">// FloatingEq2Matcher() matches (x, y) by matching FloatingEqMatcher(x, false)</span></div>
<div class="line"><a id="l01787" name="l01787"></a><span class="lineno"> 1787</span><span class="comment">// against y, and FloatingEq2Matcher(e) matches FloatingEqMatcher(x, false, e)</span></div>
<div class="line"><a id="l01788" name="l01788"></a><span class="lineno"> 1788</span><span class="comment">// against y. The former implements &quot;Eq&quot;, the latter &quot;Near&quot;. At present, there</span></div>
<div class="line"><a id="l01789" name="l01789"></a><span class="lineno"> 1789</span><span class="comment">// is no version that compares NaNs as equal.</span></div>
<div class="line"><a id="l01790" name="l01790"></a><span class="lineno"> 1790</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> FloatType&gt;</div>
<div class="line"><a id="l01791" name="l01791"></a><span class="lineno"> 1791</span><span class="keyword">class </span>FloatingEq2Matcher {</div>
<div class="line"><a id="l01792" name="l01792"></a><span class="lineno"> 1792</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01793" name="l01793"></a><span class="lineno"> 1793</span>  FloatingEq2Matcher() { Init(-1, <span class="keyword">false</span>); }</div>
<div class="line"><a id="l01794" name="l01794"></a><span class="lineno"> 1794</span> </div>
<div class="line"><a id="l01795" name="l01795"></a><span class="lineno"> 1795</span>  <span class="keyword">explicit</span> FloatingEq2Matcher(<span class="keywordtype">bool</span> nan_eq_nan) { Init(-1, nan_eq_nan); }</div>
<div class="line"><a id="l01796" name="l01796"></a><span class="lineno"> 1796</span> </div>
<div class="line"><a id="l01797" name="l01797"></a><span class="lineno"> 1797</span>  <span class="keyword">explicit</span> FloatingEq2Matcher(FloatType max_abs_error) {</div>
<div class="line"><a id="l01798" name="l01798"></a><span class="lineno"> 1798</span>    Init(max_abs_error, <span class="keyword">false</span>);</div>
<div class="line"><a id="l01799" name="l01799"></a><span class="lineno"> 1799</span>  }</div>
<div class="line"><a id="l01800" name="l01800"></a><span class="lineno"> 1800</span> </div>
<div class="line"><a id="l01801" name="l01801"></a><span class="lineno"> 1801</span>  FloatingEq2Matcher(FloatType max_abs_error, <span class="keywordtype">bool</span> nan_eq_nan) {</div>
<div class="line"><a id="l01802" name="l01802"></a><span class="lineno"> 1802</span>    Init(max_abs_error, nan_eq_nan);</div>
<div class="line"><a id="l01803" name="l01803"></a><span class="lineno"> 1803</span>  }</div>
<div class="line"><a id="l01804" name="l01804"></a><span class="lineno"> 1804</span> </div>
<div class="line"><a id="l01805" name="l01805"></a><span class="lineno"> 1805</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2&gt;</div>
<div class="line"><a id="l01806" name="l01806"></a><span class="lineno"> 1806</span>  <span class="keyword">operator</span> Matcher&lt;::std::tuple&lt;T1, T2&gt;&gt;() <span class="keyword">const</span> {</div>
<div class="line"><a id="l01807" name="l01807"></a><span class="lineno"> 1807</span>    <span class="keywordflow">return</span> MakeMatcher(</div>
<div class="line"><a id="l01808" name="l01808"></a><span class="lineno"> 1808</span>        <span class="keyword">new</span> Impl&lt;::std::tuple&lt;T1, T2&gt;&gt;(max_abs_error_, nan_eq_nan_));</div>
<div class="line"><a id="l01809" name="l01809"></a><span class="lineno"> 1809</span>  }</div>
<div class="line"><a id="l01810" name="l01810"></a><span class="lineno"> 1810</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2&gt;</div>
<div class="line"><a id="l01811" name="l01811"></a><span class="lineno"> 1811</span>  <span class="keyword">operator</span> Matcher&lt;const ::std::tuple&lt;T1, T2&gt;&amp;&gt;() <span class="keyword">const</span> {</div>
<div class="line"><a id="l01812" name="l01812"></a><span class="lineno"> 1812</span>    <span class="keywordflow">return</span> MakeMatcher(</div>
<div class="line"><a id="l01813" name="l01813"></a><span class="lineno"> 1813</span>        <span class="keyword">new</span> Impl&lt;const ::std::tuple&lt;T1, T2&gt;&amp;&gt;(max_abs_error_, nan_eq_nan_));</div>
<div class="line"><a id="l01814" name="l01814"></a><span class="lineno"> 1814</span>  }</div>
<div class="line"><a id="l01815" name="l01815"></a><span class="lineno"> 1815</span> </div>
<div class="line"><a id="l01816" name="l01816"></a><span class="lineno"> 1816</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01817" name="l01817"></a><span class="lineno"> 1817</span>  static ::std::ostream&amp; GetDesc(::std::ostream&amp; os) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01818" name="l01818"></a><span class="lineno"> 1818</span>    <span class="keywordflow">return</span> os &lt;&lt; <span class="stringliteral">&quot;an almost-equal pair&quot;</span>;</div>
<div class="line"><a id="l01819" name="l01819"></a><span class="lineno"> 1819</span>  }</div>
<div class="line"><a id="l01820" name="l01820"></a><span class="lineno"> 1820</span> </div>
<div class="line"><a id="l01821" name="l01821"></a><span class="lineno"> 1821</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple&gt;</div>
<div class="line"><a id="l01822" name="l01822"></a><span class="lineno"> 1822</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Tuple&gt; {</div>
<div class="line"><a id="l01823" name="l01823"></a><span class="lineno"> 1823</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l01824" name="l01824"></a><span class="lineno"> 1824</span>    Impl(FloatType max_abs_error, <span class="keywordtype">bool</span> nan_eq_nan)</div>
<div class="line"><a id="l01825" name="l01825"></a><span class="lineno"> 1825</span>        : max_abs_error_(max_abs_error), nan_eq_nan_(nan_eq_nan) {}</div>
<div class="line"><a id="l01826" name="l01826"></a><span class="lineno"> 1826</span> </div>
<div class="line"><a id="l01827" name="l01827"></a><span class="lineno"> 1827</span>    <span class="keywordtype">bool</span> MatchAndExplain(Tuple args,</div>
<div class="line"><a id="l01828" name="l01828"></a><span class="lineno"> 1828</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01829" name="l01829"></a><span class="lineno"> 1829</span>      <span class="keywordflow">if</span> (max_abs_error_ == -1) {</div>
<div class="line"><a id="l01830" name="l01830"></a><span class="lineno"> 1830</span>        FloatingEqMatcher&lt;FloatType&gt; fm(::std::get&lt;0&gt;(args), nan_eq_nan_);</div>
<div class="line"><a id="l01831" name="l01831"></a><span class="lineno"> 1831</span>        <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Matcher&lt;FloatType&gt;<span class="keyword">&gt;</span>(fm).MatchAndExplain(</div>
<div class="line"><a id="l01832" name="l01832"></a><span class="lineno"> 1832</span>            ::std::get&lt;1&gt;(args), listener);</div>
<div class="line"><a id="l01833" name="l01833"></a><span class="lineno"> 1833</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l01834" name="l01834"></a><span class="lineno"> 1834</span>        FloatingEqMatcher&lt;FloatType&gt; fm(::std::get&lt;0&gt;(args), nan_eq_nan_,</div>
<div class="line"><a id="l01835" name="l01835"></a><span class="lineno"> 1835</span>                                        max_abs_error_);</div>
<div class="line"><a id="l01836" name="l01836"></a><span class="lineno"> 1836</span>        <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>Matcher&lt;FloatType&gt;<span class="keyword">&gt;</span>(fm).MatchAndExplain(</div>
<div class="line"><a id="l01837" name="l01837"></a><span class="lineno"> 1837</span>            ::std::get&lt;1&gt;(args), listener);</div>
<div class="line"><a id="l01838" name="l01838"></a><span class="lineno"> 1838</span>      }</div>
<div class="line"><a id="l01839" name="l01839"></a><span class="lineno"> 1839</span>    }</div>
<div class="line"><a id="l01840" name="l01840"></a><span class="lineno"> 1840</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01841" name="l01841"></a><span class="lineno"> 1841</span>      *os &lt;&lt; <span class="stringliteral">&quot;are &quot;</span> &lt;&lt; GetDesc;</div>
<div class="line"><a id="l01842" name="l01842"></a><span class="lineno"> 1842</span>    }</div>
<div class="line"><a id="l01843" name="l01843"></a><span class="lineno"> 1843</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01844" name="l01844"></a><span class="lineno"> 1844</span>      *os &lt;&lt; <span class="stringliteral">&quot;aren&#39;t &quot;</span> &lt;&lt; GetDesc;</div>
<div class="line"><a id="l01845" name="l01845"></a><span class="lineno"> 1845</span>    }</div>
<div class="line"><a id="l01846" name="l01846"></a><span class="lineno"> 1846</span> </div>
<div class="line"><a id="l01847" name="l01847"></a><span class="lineno"> 1847</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l01848" name="l01848"></a><span class="lineno"> 1848</span>    FloatType max_abs_error_;</div>
<div class="line"><a id="l01849" name="l01849"></a><span class="lineno"> 1849</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> nan_eq_nan_;</div>
<div class="line"><a id="l01850" name="l01850"></a><span class="lineno"> 1850</span>  };</div>
<div class="line"><a id="l01851" name="l01851"></a><span class="lineno"> 1851</span> </div>
<div class="line"><a id="l01852" name="l01852"></a><span class="lineno"> 1852</span>  <span class="keywordtype">void</span> Init(FloatType max_abs_error_val, <span class="keywordtype">bool</span> nan_eq_nan_val) {</div>
<div class="line"><a id="l01853" name="l01853"></a><span class="lineno"> 1853</span>    max_abs_error_ = max_abs_error_val;</div>
<div class="line"><a id="l01854" name="l01854"></a><span class="lineno"> 1854</span>    nan_eq_nan_ = nan_eq_nan_val;</div>
<div class="line"><a id="l01855" name="l01855"></a><span class="lineno"> 1855</span>  }</div>
<div class="line"><a id="l01856" name="l01856"></a><span class="lineno"> 1856</span>  FloatType max_abs_error_;</div>
<div class="line"><a id="l01857" name="l01857"></a><span class="lineno"> 1857</span>  <span class="keywordtype">bool</span> nan_eq_nan_;</div>
<div class="line"><a id="l01858" name="l01858"></a><span class="lineno"> 1858</span>};</div>
<div class="line"><a id="l01859" name="l01859"></a><span class="lineno"> 1859</span> </div>
<div class="line"><a id="l01860" name="l01860"></a><span class="lineno"> 1860</span><span class="comment">// Implements the Pointee(m) matcher for matching a pointer whose</span></div>
<div class="line"><a id="l01861" name="l01861"></a><span class="lineno"> 1861</span><span class="comment">// pointee matches matcher m.  The pointer can be either raw or smart.</span></div>
<div class="line"><a id="l01862" name="l01862"></a><span class="lineno"> 1862</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l01863" name="l01863"></a><span class="lineno"> 1863</span><span class="keyword">class </span>PointeeMatcher {</div>
<div class="line"><a id="l01864" name="l01864"></a><span class="lineno"> 1864</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01865" name="l01865"></a><span class="lineno"> 1865</span>  <span class="keyword">explicit</span> PointeeMatcher(<span class="keyword">const</span> InnerMatcher&amp; matcher) : matcher_(matcher) {}</div>
<div class="line"><a id="l01866" name="l01866"></a><span class="lineno"> 1866</span> </div>
<div class="line"><a id="l01867" name="l01867"></a><span class="lineno"> 1867</span>  <span class="comment">// This type conversion operator template allows Pointee(m) to be</span></div>
<div class="line"><a id="l01868" name="l01868"></a><span class="lineno"> 1868</span>  <span class="comment">// used as a matcher for any pointer type whose pointee type is</span></div>
<div class="line"><a id="l01869" name="l01869"></a><span class="lineno"> 1869</span>  <span class="comment">// compatible with the inner matcher, where type Pointer can be</span></div>
<div class="line"><a id="l01870" name="l01870"></a><span class="lineno"> 1870</span>  <span class="comment">// either a raw pointer or a smart pointer.</span></div>
<div class="line"><a id="l01871" name="l01871"></a><span class="lineno"> 1871</span>  <span class="comment">//</span></div>
<div class="line"><a id="l01872" name="l01872"></a><span class="lineno"> 1872</span>  <span class="comment">// The reason we do this instead of relying on</span></div>
<div class="line"><a id="l01873" name="l01873"></a><span class="lineno"> 1873</span>  <span class="comment">// MakePolymorphicMatcher() is that the latter is not flexible</span></div>
<div class="line"><a id="l01874" name="l01874"></a><span class="lineno"> 1874</span>  <span class="comment">// enough for implementing the DescribeTo() method of Pointee().</span></div>
<div class="line"><a id="l01875" name="l01875"></a><span class="lineno"> 1875</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>er&gt;</div>
<div class="line"><a id="l01876" name="l01876"></a><span class="lineno"> 1876</span>  <span class="keyword">operator</span> Matcher&lt;Pointer&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01877" name="l01877"></a><span class="lineno"> 1877</span>    <span class="keywordflow">return</span> Matcher&lt;Pointer&gt;(<span class="keyword">new</span> Impl&lt;const Pointer&amp;&gt;(matcher_));</div>
<div class="line"><a id="l01878" name="l01878"></a><span class="lineno"> 1878</span>  }</div>
<div class="line"><a id="l01879" name="l01879"></a><span class="lineno"> 1879</span> </div>
<div class="line"><a id="l01880" name="l01880"></a><span class="lineno"> 1880</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01881" name="l01881"></a><span class="lineno"> 1881</span>  <span class="comment">// The monomorphic implementation that works for a particular pointer type.</span></div>
<div class="line"><a id="l01882" name="l01882"></a><span class="lineno"> 1882</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>er&gt;</div>
<div class="line"><a id="l01883" name="l01883"></a><span class="lineno"> 1883</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Pointer&gt; {</div>
<div class="line"><a id="l01884" name="l01884"></a><span class="lineno"> 1884</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l01885" name="l01885"></a><span class="lineno"> 1885</span>    <span class="keyword">using </span>Pointee =</div>
<div class="line"><a id="l01886" name="l01886"></a><span class="lineno"> 1886</span>        <span class="keyword">typename</span> std::pointer_traits&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(</div>
<div class="line"><a id="l01887" name="l01887"></a><span class="lineno"> 1887</span>            Pointer)&gt;::element_type;</div>
<div class="line"><a id="l01888" name="l01888"></a><span class="lineno"> 1888</span> </div>
<div class="line"><a id="l01889" name="l01889"></a><span class="lineno"> 1889</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> InnerMatcher&amp; matcher)</div>
<div class="line"><a id="l01890" name="l01890"></a><span class="lineno"> 1890</span>        : matcher_(MatcherCast&lt;const Pointee&amp;&gt;(matcher)) {}</div>
<div class="line"><a id="l01891" name="l01891"></a><span class="lineno"> 1891</span> </div>
<div class="line"><a id="l01892" name="l01892"></a><span class="lineno"> 1892</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01893" name="l01893"></a><span class="lineno"> 1893</span>      *os &lt;&lt; <span class="stringliteral">&quot;points to a value that &quot;</span>;</div>
<div class="line"><a id="l01894" name="l01894"></a><span class="lineno"> 1894</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01895" name="l01895"></a><span class="lineno"> 1895</span>    }</div>
<div class="line"><a id="l01896" name="l01896"></a><span class="lineno"> 1896</span> </div>
<div class="line"><a id="l01897" name="l01897"></a><span class="lineno"> 1897</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01898" name="l01898"></a><span class="lineno"> 1898</span>      *os &lt;&lt; <span class="stringliteral">&quot;does not point to a value that &quot;</span>;</div>
<div class="line"><a id="l01899" name="l01899"></a><span class="lineno"> 1899</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01900" name="l01900"></a><span class="lineno"> 1900</span>    }</div>
<div class="line"><a id="l01901" name="l01901"></a><span class="lineno"> 1901</span> </div>
<div class="line"><a id="l01902" name="l01902"></a><span class="lineno"> 1902</span>    <span class="keywordtype">bool</span> MatchAndExplain(Pointer pointer,</div>
<div class="line"><a id="l01903" name="l01903"></a><span class="lineno"> 1903</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01904" name="l01904"></a><span class="lineno"> 1904</span>      <span class="keywordflow">if</span> (GetRawPointer(pointer) == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01905" name="l01905"></a><span class="lineno"> 1905</span> </div>
<div class="line"><a id="l01906" name="l01906"></a><span class="lineno"> 1906</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which points to &quot;</span>;</div>
<div class="line"><a id="l01907" name="l01907"></a><span class="lineno"> 1907</span>      <span class="keywordflow">return</span> MatchPrintAndExplain(*pointer, matcher_, listener);</div>
<div class="line"><a id="l01908" name="l01908"></a><span class="lineno"> 1908</span>    }</div>
<div class="line"><a id="l01909" name="l01909"></a><span class="lineno"> 1909</span> </div>
<div class="line"><a id="l01910" name="l01910"></a><span class="lineno"> 1910</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l01911" name="l01911"></a><span class="lineno"> 1911</span>    <span class="keyword">const</span> Matcher&lt;const Pointee&amp;&gt; matcher_;</div>
<div class="line"><a id="l01912" name="l01912"></a><span class="lineno"> 1912</span>  };</div>
<div class="line"><a id="l01913" name="l01913"></a><span class="lineno"> 1913</span> </div>
<div class="line"><a id="l01914" name="l01914"></a><span class="lineno"> 1914</span>  <span class="keyword">const</span> InnerMatcher matcher_;</div>
<div class="line"><a id="l01915" name="l01915"></a><span class="lineno"> 1915</span>};</div>
<div class="line"><a id="l01916" name="l01916"></a><span class="lineno"> 1916</span> </div>
<div class="line"><a id="l01917" name="l01917"></a><span class="lineno"> 1917</span><span class="comment">// Implements the Pointer(m) matcher</span></div>
<div class="line"><a id="l01918" name="l01918"></a><span class="lineno"> 1918</span><span class="comment">// Implements the Pointer(m) matcher for matching a pointer that matches matcher</span></div>
<div class="line"><a id="l01919" name="l01919"></a><span class="lineno"> 1919</span><span class="comment">// m.  The pointer can be either raw or smart, and will match `m` against the</span></div>
<div class="line"><a id="l01920" name="l01920"></a><span class="lineno"> 1920</span><span class="comment">// raw pointer.</span></div>
<div class="line"><a id="l01921" name="l01921"></a><span class="lineno"> 1921</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l01922" name="l01922"></a><span class="lineno"> 1922</span><span class="keyword">class </span>PointerMatcher {</div>
<div class="line"><a id="l01923" name="l01923"></a><span class="lineno"> 1923</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01924" name="l01924"></a><span class="lineno"> 1924</span>  <span class="keyword">explicit</span> PointerMatcher(<span class="keyword">const</span> InnerMatcher&amp; matcher) : matcher_(matcher) {}</div>
<div class="line"><a id="l01925" name="l01925"></a><span class="lineno"> 1925</span> </div>
<div class="line"><a id="l01926" name="l01926"></a><span class="lineno"> 1926</span>  <span class="comment">// This type conversion operator template allows Pointer(m) to be</span></div>
<div class="line"><a id="l01927" name="l01927"></a><span class="lineno"> 1927</span>  <span class="comment">// used as a matcher for any pointer type whose pointer type is</span></div>
<div class="line"><a id="l01928" name="l01928"></a><span class="lineno"> 1928</span>  <span class="comment">// compatible with the inner matcher, where type PointerType can be</span></div>
<div class="line"><a id="l01929" name="l01929"></a><span class="lineno"> 1929</span>  <span class="comment">// either a raw pointer or a smart pointer.</span></div>
<div class="line"><a id="l01930" name="l01930"></a><span class="lineno"> 1930</span>  <span class="comment">//</span></div>
<div class="line"><a id="l01931" name="l01931"></a><span class="lineno"> 1931</span>  <span class="comment">// The reason we do this instead of relying on</span></div>
<div class="line"><a id="l01932" name="l01932"></a><span class="lineno"> 1932</span>  <span class="comment">// MakePolymorphicMatcher() is that the latter is not flexible</span></div>
<div class="line"><a id="l01933" name="l01933"></a><span class="lineno"> 1933</span>  <span class="comment">// enough for implementing the DescribeTo() method of Pointer().</span></div>
<div class="line"><a id="l01934" name="l01934"></a><span class="lineno"> 1934</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>erType&gt;</div>
<div class="line"><a id="l01935" name="l01935"></a><span class="lineno"> 1935</span>  <span class="keyword">operator</span> Matcher&lt;PointerType&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01936" name="l01936"></a><span class="lineno"> 1936</span>    <span class="keywordflow">return</span> Matcher&lt;PointerType&gt;(<span class="keyword">new</span> Impl&lt;const PointerType&amp;&gt;(matcher_));</div>
<div class="line"><a id="l01937" name="l01937"></a><span class="lineno"> 1937</span>  }</div>
<div class="line"><a id="l01938" name="l01938"></a><span class="lineno"> 1938</span> </div>
<div class="line"><a id="l01939" name="l01939"></a><span class="lineno"> 1939</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01940" name="l01940"></a><span class="lineno"> 1940</span>  <span class="comment">// The monomorphic implementation that works for a particular pointer type.</span></div>
<div class="line"><a id="l01941" name="l01941"></a><span class="lineno"> 1941</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>erType&gt;</div>
<div class="line"><a id="l01942" name="l01942"></a><span class="lineno"> 1942</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;PointerType&gt; {</div>
<div class="line"><a id="l01943" name="l01943"></a><span class="lineno"> 1943</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l01944" name="l01944"></a><span class="lineno"> 1944</span>    <span class="keyword">using </span>Pointer =</div>
<div class="line"><a id="l01945" name="l01945"></a><span class="lineno"> 1945</span>        <span class="keyword">const</span> <span class="keyword">typename</span> std::pointer_traits&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(</div>
<div class="line"><a id="l01946" name="l01946"></a><span class="lineno"> 1946</span>            PointerType)&gt;::element_type*;</div>
<div class="line"><a id="l01947" name="l01947"></a><span class="lineno"> 1947</span> </div>
<div class="line"><a id="l01948" name="l01948"></a><span class="lineno"> 1948</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> InnerMatcher&amp; matcher)</div>
<div class="line"><a id="l01949" name="l01949"></a><span class="lineno"> 1949</span>        : matcher_(MatcherCast&lt;Pointer&gt;(matcher)) {}</div>
<div class="line"><a id="l01950" name="l01950"></a><span class="lineno"> 1950</span> </div>
<div class="line"><a id="l01951" name="l01951"></a><span class="lineno"> 1951</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01952" name="l01952"></a><span class="lineno"> 1952</span>      *os &lt;&lt; <span class="stringliteral">&quot;is a pointer that &quot;</span>;</div>
<div class="line"><a id="l01953" name="l01953"></a><span class="lineno"> 1953</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01954" name="l01954"></a><span class="lineno"> 1954</span>    }</div>
<div class="line"><a id="l01955" name="l01955"></a><span class="lineno"> 1955</span> </div>
<div class="line"><a id="l01956" name="l01956"></a><span class="lineno"> 1956</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01957" name="l01957"></a><span class="lineno"> 1957</span>      *os &lt;&lt; <span class="stringliteral">&quot;is not a pointer that &quot;</span>;</div>
<div class="line"><a id="l01958" name="l01958"></a><span class="lineno"> 1958</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01959" name="l01959"></a><span class="lineno"> 1959</span>    }</div>
<div class="line"><a id="l01960" name="l01960"></a><span class="lineno"> 1960</span> </div>
<div class="line"><a id="l01961" name="l01961"></a><span class="lineno"> 1961</span>    <span class="keywordtype">bool</span> MatchAndExplain(PointerType pointer,</div>
<div class="line"><a id="l01962" name="l01962"></a><span class="lineno"> 1962</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l01963" name="l01963"></a><span class="lineno"> 1963</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which is a pointer that &quot;</span>;</div>
<div class="line"><a id="l01964" name="l01964"></a><span class="lineno"> 1964</span>      Pointer p = GetRawPointer(pointer);</div>
<div class="line"><a id="l01965" name="l01965"></a><span class="lineno"> 1965</span>      <span class="keywordflow">return</span> MatchPrintAndExplain(p, matcher_, listener);</div>
<div class="line"><a id="l01966" name="l01966"></a><span class="lineno"> 1966</span>    }</div>
<div class="line"><a id="l01967" name="l01967"></a><span class="lineno"> 1967</span> </div>
<div class="line"><a id="l01968" name="l01968"></a><span class="lineno"> 1968</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l01969" name="l01969"></a><span class="lineno"> 1969</span>    Matcher&lt;Pointer&gt; matcher_;</div>
<div class="line"><a id="l01970" name="l01970"></a><span class="lineno"> 1970</span>  };</div>
<div class="line"><a id="l01971" name="l01971"></a><span class="lineno"> 1971</span> </div>
<div class="line"><a id="l01972" name="l01972"></a><span class="lineno"> 1972</span>  <span class="keyword">const</span> InnerMatcher matcher_;</div>
<div class="line"><a id="l01973" name="l01973"></a><span class="lineno"> 1973</span>};</div>
<div class="line"><a id="l01974" name="l01974"></a><span class="lineno"> 1974</span> </div>
<div class="line"><a id="l01975" name="l01975"></a><span class="lineno"> 1975</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l01976" name="l01976"></a><span class="lineno"> 1976</span><span class="comment">// Implements the WhenDynamicCastTo&lt;T&gt;(m) matcher that matches a pointer or</span></div>
<div class="line"><a id="l01977" name="l01977"></a><span class="lineno"> 1977</span><span class="comment">// reference that matches inner_matcher when dynamic_cast&lt;T&gt; is applied.</span></div>
<div class="line"><a id="l01978" name="l01978"></a><span class="lineno"> 1978</span><span class="comment">// The result of dynamic_cast&lt;To&gt; is forwarded to the inner matcher.</span></div>
<div class="line"><a id="l01979" name="l01979"></a><span class="lineno"> 1979</span><span class="comment">// If To is a pointer and the cast fails, the inner matcher will receive NULL.</span></div>
<div class="line"><a id="l01980" name="l01980"></a><span class="lineno"> 1980</span><span class="comment">// If To is a reference and the cast fails, this matcher returns false</span></div>
<div class="line"><a id="l01981" name="l01981"></a><span class="lineno"> 1981</span><span class="comment">// immediately.</span></div>
<div class="line"><a id="l01982" name="l01982"></a><span class="lineno"> 1982</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> To&gt;</div>
<div class="line"><a id="l01983" name="l01983"></a><span class="lineno"> 1983</span><span class="keyword">class </span>WhenDynamicCastToMatcherBase {</div>
<div class="line"><a id="l01984" name="l01984"></a><span class="lineno"> 1984</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01985" name="l01985"></a><span class="lineno"> 1985</span>  <span class="keyword">explicit</span> WhenDynamicCastToMatcherBase(<span class="keyword">const</span> Matcher&lt;To&gt;&amp; matcher)</div>
<div class="line"><a id="l01986" name="l01986"></a><span class="lineno"> 1986</span>      : matcher_(matcher) {}</div>
<div class="line"><a id="l01987" name="l01987"></a><span class="lineno"> 1987</span> </div>
<div class="line"><a id="l01988" name="l01988"></a><span class="lineno"> 1988</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01989" name="l01989"></a><span class="lineno"> 1989</span>    GetCastTypeDescription(os);</div>
<div class="line"><a id="l01990" name="l01990"></a><span class="lineno"> 1990</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l01991" name="l01991"></a><span class="lineno"> 1991</span>  }</div>
<div class="line"><a id="l01992" name="l01992"></a><span class="lineno"> 1992</span> </div>
<div class="line"><a id="l01993" name="l01993"></a><span class="lineno"> 1993</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l01994" name="l01994"></a><span class="lineno"> 1994</span>    GetCastTypeDescription(os);</div>
<div class="line"><a id="l01995" name="l01995"></a><span class="lineno"> 1995</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l01996" name="l01996"></a><span class="lineno"> 1996</span>  }</div>
<div class="line"><a id="l01997" name="l01997"></a><span class="lineno"> 1997</span> </div>
<div class="line"><a id="l01998" name="l01998"></a><span class="lineno"> 1998</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l01999" name="l01999"></a><span class="lineno"> 1999</span>  <span class="keyword">const</span> Matcher&lt;To&gt; matcher_;</div>
<div class="line"><a id="l02000" name="l02000"></a><span class="lineno"> 2000</span> </div>
<div class="line"><a id="l02001" name="l02001"></a><span class="lineno"> 2001</span>  <span class="keyword">static</span> std::string GetToName() { <span class="keywordflow">return</span> GetTypeName&lt;To&gt;(); }</div>
<div class="line"><a id="l02002" name="l02002"></a><span class="lineno"> 2002</span> </div>
<div class="line"><a id="l02003" name="l02003"></a><span class="lineno"> 2003</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02004" name="l02004"></a><span class="lineno"> 2004</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> GetCastTypeDescription(::std::ostream* os) {</div>
<div class="line"><a id="l02005" name="l02005"></a><span class="lineno"> 2005</span>    *os &lt;&lt; <span class="stringliteral">&quot;when dynamic_cast to &quot;</span> &lt;&lt; GetToName() &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l02006" name="l02006"></a><span class="lineno"> 2006</span>  }</div>
<div class="line"><a id="l02007" name="l02007"></a><span class="lineno"> 2007</span>};</div>
<div class="line"><a id="l02008" name="l02008"></a><span class="lineno"> 2008</span> </div>
<div class="line"><a id="l02009" name="l02009"></a><span class="lineno"> 2009</span><span class="comment">// Primary template.</span></div>
<div class="line"><a id="l02010" name="l02010"></a><span class="lineno"> 2010</span><span class="comment">// To is a pointer. Cast and forward the result.</span></div>
<div class="line"><a id="l02011" name="l02011"></a><span class="lineno"> 2011</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> To&gt;</div>
<div class="line"><a id="l02012" name="l02012"></a><span class="lineno"> 2012</span><span class="keyword">class </span>WhenDynamicCastToMatcher : <span class="keyword">public</span> WhenDynamicCastToMatcherBase&lt;To&gt; {</div>
<div class="line"><a id="l02013" name="l02013"></a><span class="lineno"> 2013</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02014" name="l02014"></a><span class="lineno"> 2014</span>  <span class="keyword">explicit</span> WhenDynamicCastToMatcher(<span class="keyword">const</span> Matcher&lt;To&gt;&amp; matcher)</div>
<div class="line"><a id="l02015" name="l02015"></a><span class="lineno"> 2015</span>      : WhenDynamicCastToMatcherBase&lt;To&gt;(matcher) {}</div>
<div class="line"><a id="l02016" name="l02016"></a><span class="lineno"> 2016</span> </div>
<div class="line"><a id="l02017" name="l02017"></a><span class="lineno"> 2017</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> From&gt;</div>
<div class="line"><a id="l02018" name="l02018"></a><span class="lineno"> 2018</span>  <span class="keywordtype">bool</span> MatchAndExplain(From from, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02019" name="l02019"></a><span class="lineno"> 2019</span>    To to = <span class="keyword">dynamic_cast&lt;</span>To<span class="keyword">&gt;</span>(from);</div>
<div class="line"><a id="l02020" name="l02020"></a><span class="lineno"> 2020</span>    <span class="keywordflow">return</span> MatchPrintAndExplain(to, this-&gt;matcher_, listener);</div>
<div class="line"><a id="l02021" name="l02021"></a><span class="lineno"> 2021</span>  }</div>
<div class="line"><a id="l02022" name="l02022"></a><span class="lineno"> 2022</span>};</div>
<div class="line"><a id="l02023" name="l02023"></a><span class="lineno"> 2023</span> </div>
<div class="line"><a id="l02024" name="l02024"></a><span class="lineno"> 2024</span><span class="comment">// Specialize for references.</span></div>
<div class="line"><a id="l02025" name="l02025"></a><span class="lineno"> 2025</span><span class="comment">// In this case we return false if the dynamic_cast fails.</span></div>
<div class="line"><a id="l02026" name="l02026"></a><span class="lineno"> 2026</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> To&gt;</div>
<div class="line"><a id="l02027" name="l02027"></a><span class="lineno"> 2027</span><span class="keyword">class </span>WhenDynamicCastToMatcher&lt;<a class="code hl_class" href="classtesting_1_1internal_1_1_to.html">To</a>&amp;&gt; : <span class="keyword">public</span> WhenDynamicCastToMatcherBase&lt;To&amp;&gt; {</div>
<div class="line"><a id="l02028" name="l02028"></a><span class="lineno"> 2028</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02029" name="l02029"></a><span class="lineno"> 2029</span>  <span class="keyword">explicit</span> WhenDynamicCastToMatcher(<span class="keyword">const</span> Matcher&lt;To&amp;&gt;&amp; matcher)</div>
<div class="line"><a id="l02030" name="l02030"></a><span class="lineno"> 2030</span>      : WhenDynamicCastToMatcherBase&lt;<a class="code hl_class" href="classtesting_1_1internal_1_1_to.html">To</a>&amp;&gt;(matcher) {}</div>
<div class="line"><a id="l02031" name="l02031"></a><span class="lineno"> 2031</span> </div>
<div class="line"><a id="l02032" name="l02032"></a><span class="lineno"> 2032</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> From&gt;</div>
<div class="line"><a id="l02033" name="l02033"></a><span class="lineno"> 2033</span>  <span class="keywordtype">bool</span> MatchAndExplain(From&amp; from, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02034" name="l02034"></a><span class="lineno"> 2034</span>    <span class="comment">// We don&#39;t want an std::bad_cast here, so do the cast with pointers.</span></div>
<div class="line"><a id="l02035" name="l02035"></a><span class="lineno"> 2035</span>    <a class="code hl_class" href="classtesting_1_1internal_1_1_to.html">To</a>* to = <span class="keyword">dynamic_cast&lt;</span><a class="code hl_class" href="classtesting_1_1internal_1_1_to.html">To</a>*<span class="keyword">&gt;</span>(&amp;from);</div>
<div class="line"><a id="l02036" name="l02036"></a><span class="lineno"> 2036</span>    <span class="keywordflow">if</span> (to == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l02037" name="l02037"></a><span class="lineno"> 2037</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which cannot be dynamic_cast to &quot;</span> &lt;&lt; this-&gt;GetToName();</div>
<div class="line"><a id="l02038" name="l02038"></a><span class="lineno"> 2038</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02039" name="l02039"></a><span class="lineno"> 2039</span>    }</div>
<div class="line"><a id="l02040" name="l02040"></a><span class="lineno"> 2040</span>    <span class="keywordflow">return</span> MatchPrintAndExplain(*to, this-&gt;matcher_, listener);</div>
<div class="line"><a id="l02041" name="l02041"></a><span class="lineno"> 2041</span>  }</div>
<div class="line"><a id="l02042" name="l02042"></a><span class="lineno"> 2042</span>};</div>
<div class="line"><a id="l02043" name="l02043"></a><span class="lineno"> 2043</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l02044" name="l02044"></a><span class="lineno"> 2044</span> </div>
<div class="line"><a id="l02045" name="l02045"></a><span class="lineno"> 2045</span><span class="comment">// Implements the Field() matcher for matching a field (i.e. member</span></div>
<div class="line"><a id="l02046" name="l02046"></a><span class="lineno"> 2046</span><span class="comment">// variable) of an object.</span></div>
<div class="line"><a id="l02047" name="l02047"></a><span class="lineno"> 2047</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> FieldType&gt;</div>
<div class="line"><a id="l02048" name="l02048"></a><span class="lineno"> 2048</span><span class="keyword">class </span>FieldMatcher {</div>
<div class="line"><a id="l02049" name="l02049"></a><span class="lineno"> 2049</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02050" name="l02050"></a><span class="lineno"> 2050</span>  FieldMatcher(FieldType Class::*field,</div>
<div class="line"><a id="l02051" name="l02051"></a><span class="lineno"> 2051</span>               <span class="keyword">const</span> Matcher&lt;const FieldType&amp;&gt;&amp; matcher)</div>
<div class="line"><a id="l02052" name="l02052"></a><span class="lineno"> 2052</span>      : field_(field), matcher_(matcher), whose_field_(<span class="stringliteral">&quot;whose given field &quot;</span>) {}</div>
<div class="line"><a id="l02053" name="l02053"></a><span class="lineno"> 2053</span> </div>
<div class="line"><a id="l02054" name="l02054"></a><span class="lineno"> 2054</span>  FieldMatcher(<span class="keyword">const</span> std::string&amp; field_name, FieldType Class::*field,</div>
<div class="line"><a id="l02055" name="l02055"></a><span class="lineno"> 2055</span>               <span class="keyword">const</span> Matcher&lt;const FieldType&amp;&gt;&amp; matcher)</div>
<div class="line"><a id="l02056" name="l02056"></a><span class="lineno"> 2056</span>      : field_(field),</div>
<div class="line"><a id="l02057" name="l02057"></a><span class="lineno"> 2057</span>        matcher_(matcher),</div>
<div class="line"><a id="l02058" name="l02058"></a><span class="lineno"> 2058</span>        whose_field_(<span class="stringliteral">&quot;whose field `&quot;</span> + field_name + <span class="stringliteral">&quot;` &quot;</span>) {}</div>
<div class="line"><a id="l02059" name="l02059"></a><span class="lineno"> 2059</span> </div>
<div class="line"><a id="l02060" name="l02060"></a><span class="lineno"> 2060</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02061" name="l02061"></a><span class="lineno"> 2061</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an object &quot;</span> &lt;&lt; whose_field_;</div>
<div class="line"><a id="l02062" name="l02062"></a><span class="lineno"> 2062</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02063" name="l02063"></a><span class="lineno"> 2063</span>  }</div>
<div class="line"><a id="l02064" name="l02064"></a><span class="lineno"> 2064</span> </div>
<div class="line"><a id="l02065" name="l02065"></a><span class="lineno"> 2065</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02066" name="l02066"></a><span class="lineno"> 2066</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an object &quot;</span> &lt;&lt; whose_field_;</div>
<div class="line"><a id="l02067" name="l02067"></a><span class="lineno"> 2067</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02068" name="l02068"></a><span class="lineno"> 2068</span>  }</div>
<div class="line"><a id="l02069" name="l02069"></a><span class="lineno"> 2069</span> </div>
<div class="line"><a id="l02070" name="l02070"></a><span class="lineno"> 2070</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02071" name="l02071"></a><span class="lineno"> 2071</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; value, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02072" name="l02072"></a><span class="lineno"> 2072</span>    <span class="comment">// FIXME: The dispatch on std::is_pointer was introduced as a workaround for</span></div>
<div class="line"><a id="l02073" name="l02073"></a><span class="lineno"> 2073</span>    <span class="comment">// a compiler bug, and can now be removed.</span></div>
<div class="line"><a id="l02074" name="l02074"></a><span class="lineno"> 2074</span>    <span class="keywordflow">return</span> MatchAndExplainImpl(</div>
<div class="line"><a id="l02075" name="l02075"></a><span class="lineno"> 2075</span>        <span class="keyword">typename</span> std::is_pointer&lt;<span class="keyword">typename</span> std::remove_const&lt;T&gt;::type&gt;::type(),</div>
<div class="line"><a id="l02076" name="l02076"></a><span class="lineno"> 2076</span>        value, listener);</div>
<div class="line"><a id="l02077" name="l02077"></a><span class="lineno"> 2077</span>  }</div>
<div class="line"><a id="l02078" name="l02078"></a><span class="lineno"> 2078</span> </div>
<div class="line"><a id="l02079" name="l02079"></a><span class="lineno"> 2079</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02080" name="l02080"></a><span class="lineno"> 2080</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(std::false_type <span class="comment">/* is_not_pointer */</span>,</div>
<div class="line"><a id="l02081" name="l02081"></a><span class="lineno"> 2081</span>                           <span class="keyword">const</span> Class&amp; obj,</div>
<div class="line"><a id="l02082" name="l02082"></a><span class="lineno"> 2082</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02083" name="l02083"></a><span class="lineno"> 2083</span>    *listener &lt;&lt; whose_field_ &lt;&lt; <span class="stringliteral">&quot;is &quot;</span>;</div>
<div class="line"><a id="l02084" name="l02084"></a><span class="lineno"> 2084</span>    <span class="keywordflow">return</span> MatchPrintAndExplain(obj.*field_, matcher_, listener);</div>
<div class="line"><a id="l02085" name="l02085"></a><span class="lineno"> 2085</span>  }</div>
<div class="line"><a id="l02086" name="l02086"></a><span class="lineno"> 2086</span> </div>
<div class="line"><a id="l02087" name="l02087"></a><span class="lineno"> 2087</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(std::true_type <span class="comment">/* is_pointer */</span>, <span class="keyword">const</span> Class* p,</div>
<div class="line"><a id="l02088" name="l02088"></a><span class="lineno"> 2088</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02089" name="l02089"></a><span class="lineno"> 2089</span>    <span class="keywordflow">if</span> (p == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02090" name="l02090"></a><span class="lineno"> 2090</span> </div>
<div class="line"><a id="l02091" name="l02091"></a><span class="lineno"> 2091</span>    *listener &lt;&lt; <span class="stringliteral">&quot;which points to an object &quot;</span>;</div>
<div class="line"><a id="l02092" name="l02092"></a><span class="lineno"> 2092</span>    <span class="comment">// Since *p has a field, it must be a class/struct/union type and</span></div>
<div class="line"><a id="l02093" name="l02093"></a><span class="lineno"> 2093</span>    <span class="comment">// thus cannot be a pointer.  Therefore we pass false_type() as</span></div>
<div class="line"><a id="l02094" name="l02094"></a><span class="lineno"> 2094</span>    <span class="comment">// the first argument.</span></div>
<div class="line"><a id="l02095" name="l02095"></a><span class="lineno"> 2095</span>    <span class="keywordflow">return</span> MatchAndExplainImpl(std::false_type(), *p, listener);</div>
<div class="line"><a id="l02096" name="l02096"></a><span class="lineno"> 2096</span>  }</div>
<div class="line"><a id="l02097" name="l02097"></a><span class="lineno"> 2097</span> </div>
<div class="line"><a id="l02098" name="l02098"></a><span class="lineno"> 2098</span>  <span class="keyword">const</span> FieldType Class::*field_;</div>
<div class="line"><a id="l02099" name="l02099"></a><span class="lineno"> 2099</span>  <span class="keyword">const</span> Matcher&lt;const FieldType&amp;&gt; matcher_;</div>
<div class="line"><a id="l02100" name="l02100"></a><span class="lineno"> 2100</span> </div>
<div class="line"><a id="l02101" name="l02101"></a><span class="lineno"> 2101</span>  <span class="comment">// Contains either &quot;whose given field &quot; if the name of the field is unknown</span></div>
<div class="line"><a id="l02102" name="l02102"></a><span class="lineno"> 2102</span>  <span class="comment">// or &quot;whose field `name_of_field` &quot; if the name is known.</span></div>
<div class="line"><a id="l02103" name="l02103"></a><span class="lineno"> 2103</span>  <span class="keyword">const</span> std::string whose_field_;</div>
<div class="line"><a id="l02104" name="l02104"></a><span class="lineno"> 2104</span>};</div>
<div class="line"><a id="l02105" name="l02105"></a><span class="lineno"> 2105</span> </div>
<div class="line"><a id="l02106" name="l02106"></a><span class="lineno"> 2106</span><span class="comment">// Implements the Property() matcher for matching a property</span></div>
<div class="line"><a id="l02107" name="l02107"></a><span class="lineno"> 2107</span><span class="comment">// (i.e. return value of a getter method) of an object.</span></div>
<div class="line"><a id="l02108" name="l02108"></a><span class="lineno"> 2108</span><span class="comment">//</span></div>
<div class="line"><a id="l02109" name="l02109"></a><span class="lineno"> 2109</span><span class="comment">// Property is a const-qualified member function of Class returning</span></div>
<div class="line"><a id="l02110" name="l02110"></a><span class="lineno"> 2110</span><span class="comment">// PropertyType.</span></div>
<div class="line"><a id="l02111" name="l02111"></a><span class="lineno"> 2111</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> PropertyType, <span class="keyword">typename</span> Property&gt;</div>
<div class="line"><a id="l02112" name="l02112"></a><span class="lineno"> 2112</span><span class="keyword">class </span>PropertyMatcher {</div>
<div class="line"><a id="l02113" name="l02113"></a><span class="lineno"> 2113</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02114" name="l02114"></a><span class="lineno"> 2114</span>  <span class="keyword">typedef</span> <span class="keyword">const</span> PropertyType&amp; RefToConstProperty;</div>
<div class="line"><a id="l02115" name="l02115"></a><span class="lineno"> 2115</span> </div>
<div class="line"><a id="l02116" name="l02116"></a><span class="lineno"> 2116</span>  PropertyMatcher(Property property, <span class="keyword">const</span> Matcher&lt;RefToConstProperty&gt;&amp; matcher)</div>
<div class="line"><a id="l02117" name="l02117"></a><span class="lineno"> 2117</span>      : property_(property),</div>
<div class="line"><a id="l02118" name="l02118"></a><span class="lineno"> 2118</span>        matcher_(matcher),</div>
<div class="line"><a id="l02119" name="l02119"></a><span class="lineno"> 2119</span>        whose_property_(<span class="stringliteral">&quot;whose given property &quot;</span>) {}</div>
<div class="line"><a id="l02120" name="l02120"></a><span class="lineno"> 2120</span> </div>
<div class="line"><a id="l02121" name="l02121"></a><span class="lineno"> 2121</span>  PropertyMatcher(<span class="keyword">const</span> std::string&amp; property_name, Property property,</div>
<div class="line"><a id="l02122" name="l02122"></a><span class="lineno"> 2122</span>                  <span class="keyword">const</span> Matcher&lt;RefToConstProperty&gt;&amp; matcher)</div>
<div class="line"><a id="l02123" name="l02123"></a><span class="lineno"> 2123</span>      : property_(property),</div>
<div class="line"><a id="l02124" name="l02124"></a><span class="lineno"> 2124</span>        matcher_(matcher),</div>
<div class="line"><a id="l02125" name="l02125"></a><span class="lineno"> 2125</span>        whose_property_(<span class="stringliteral">&quot;whose property `&quot;</span> + property_name + <span class="stringliteral">&quot;` &quot;</span>) {}</div>
<div class="line"><a id="l02126" name="l02126"></a><span class="lineno"> 2126</span> </div>
<div class="line"><a id="l02127" name="l02127"></a><span class="lineno"> 2127</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02128" name="l02128"></a><span class="lineno"> 2128</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an object &quot;</span> &lt;&lt; whose_property_;</div>
<div class="line"><a id="l02129" name="l02129"></a><span class="lineno"> 2129</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02130" name="l02130"></a><span class="lineno"> 2130</span>  }</div>
<div class="line"><a id="l02131" name="l02131"></a><span class="lineno"> 2131</span> </div>
<div class="line"><a id="l02132" name="l02132"></a><span class="lineno"> 2132</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02133" name="l02133"></a><span class="lineno"> 2133</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an object &quot;</span> &lt;&lt; whose_property_;</div>
<div class="line"><a id="l02134" name="l02134"></a><span class="lineno"> 2134</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02135" name="l02135"></a><span class="lineno"> 2135</span>  }</div>
<div class="line"><a id="l02136" name="l02136"></a><span class="lineno"> 2136</span> </div>
<div class="line"><a id="l02137" name="l02137"></a><span class="lineno"> 2137</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02138" name="l02138"></a><span class="lineno"> 2138</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> T&amp; value, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02139" name="l02139"></a><span class="lineno"> 2139</span>    <span class="keywordflow">return</span> MatchAndExplainImpl(</div>
<div class="line"><a id="l02140" name="l02140"></a><span class="lineno"> 2140</span>        <span class="keyword">typename</span> std::is_pointer&lt;<span class="keyword">typename</span> std::remove_const&lt;T&gt;::type&gt;::type(),</div>
<div class="line"><a id="l02141" name="l02141"></a><span class="lineno"> 2141</span>        value, listener);</div>
<div class="line"><a id="l02142" name="l02142"></a><span class="lineno"> 2142</span>  }</div>
<div class="line"><a id="l02143" name="l02143"></a><span class="lineno"> 2143</span> </div>
<div class="line"><a id="l02144" name="l02144"></a><span class="lineno"> 2144</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02145" name="l02145"></a><span class="lineno"> 2145</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(std::false_type <span class="comment">/* is_not_pointer */</span>,</div>
<div class="line"><a id="l02146" name="l02146"></a><span class="lineno"> 2146</span>                           <span class="keyword">const</span> Class&amp; obj,</div>
<div class="line"><a id="l02147" name="l02147"></a><span class="lineno"> 2147</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02148" name="l02148"></a><span class="lineno"> 2148</span>    *listener &lt;&lt; whose_property_ &lt;&lt; <span class="stringliteral">&quot;is &quot;</span>;</div>
<div class="line"><a id="l02149" name="l02149"></a><span class="lineno"> 2149</span>    <span class="comment">// Cannot pass the return value (for example, int) to MatchPrintAndExplain,</span></div>
<div class="line"><a id="l02150" name="l02150"></a><span class="lineno"> 2150</span>    <span class="comment">// which takes a non-const reference as argument.</span></div>
<div class="line"><a id="l02151" name="l02151"></a><span class="lineno"> 2151</span>    RefToConstProperty result = (obj.*property_)();</div>
<div class="line"><a id="l02152" name="l02152"></a><span class="lineno"> 2152</span>    <span class="keywordflow">return</span> MatchPrintAndExplain(result, matcher_, listener);</div>
<div class="line"><a id="l02153" name="l02153"></a><span class="lineno"> 2153</span>  }</div>
<div class="line"><a id="l02154" name="l02154"></a><span class="lineno"> 2154</span> </div>
<div class="line"><a id="l02155" name="l02155"></a><span class="lineno"> 2155</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(std::true_type <span class="comment">/* is_pointer */</span>, <span class="keyword">const</span> Class* p,</div>
<div class="line"><a id="l02156" name="l02156"></a><span class="lineno"> 2156</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02157" name="l02157"></a><span class="lineno"> 2157</span>    <span class="keywordflow">if</span> (p == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02158" name="l02158"></a><span class="lineno"> 2158</span> </div>
<div class="line"><a id="l02159" name="l02159"></a><span class="lineno"> 2159</span>    *listener &lt;&lt; <span class="stringliteral">&quot;which points to an object &quot;</span>;</div>
<div class="line"><a id="l02160" name="l02160"></a><span class="lineno"> 2160</span>    <span class="comment">// Since *p has a property method, it must be a class/struct/union</span></div>
<div class="line"><a id="l02161" name="l02161"></a><span class="lineno"> 2161</span>    <span class="comment">// type and thus cannot be a pointer.  Therefore we pass</span></div>
<div class="line"><a id="l02162" name="l02162"></a><span class="lineno"> 2162</span>    <span class="comment">// false_type() as the first argument.</span></div>
<div class="line"><a id="l02163" name="l02163"></a><span class="lineno"> 2163</span>    <span class="keywordflow">return</span> MatchAndExplainImpl(std::false_type(), *p, listener);</div>
<div class="line"><a id="l02164" name="l02164"></a><span class="lineno"> 2164</span>  }</div>
<div class="line"><a id="l02165" name="l02165"></a><span class="lineno"> 2165</span> </div>
<div class="line"><a id="l02166" name="l02166"></a><span class="lineno"> 2166</span>  Property property_;</div>
<div class="line"><a id="l02167" name="l02167"></a><span class="lineno"> 2167</span>  <span class="keyword">const</span> Matcher&lt;RefToConstProperty&gt; matcher_;</div>
<div class="line"><a id="l02168" name="l02168"></a><span class="lineno"> 2168</span> </div>
<div class="line"><a id="l02169" name="l02169"></a><span class="lineno"> 2169</span>  <span class="comment">// Contains either &quot;whose given property &quot; if the name of the property is</span></div>
<div class="line"><a id="l02170" name="l02170"></a><span class="lineno"> 2170</span>  <span class="comment">// unknown or &quot;whose property `name_of_property` &quot; if the name is known.</span></div>
<div class="line"><a id="l02171" name="l02171"></a><span class="lineno"> 2171</span>  <span class="keyword">const</span> std::string whose_property_;</div>
<div class="line"><a id="l02172" name="l02172"></a><span class="lineno"> 2172</span>};</div>
<div class="line"><a id="l02173" name="l02173"></a><span class="lineno"> 2173</span> </div>
<div class="line"><a id="l02174" name="l02174"></a><span class="lineno"> 2174</span><span class="comment">// Type traits specifying various features of different functors for ResultOf.</span></div>
<div class="line"><a id="l02175" name="l02175"></a><span class="lineno"> 2175</span><span class="comment">// The default template specifies features for functor objects.</span></div>
<div class="line"><a id="l02176" name="l02176"></a><span class="lineno"> 2176</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Functor&gt;</div>
<div class="line"><a id="l02177" name="l02177"></a><span class="lineno"> 2177</span><span class="keyword">struct </span>CallableTraits {</div>
<div class="line"><a id="l02178" name="l02178"></a><span class="lineno"> 2178</span>  <span class="keyword">typedef</span> Functor StorageType;</div>
<div class="line"><a id="l02179" name="l02179"></a><span class="lineno"> 2179</span> </div>
<div class="line"><a id="l02180" name="l02180"></a><span class="lineno"> 2180</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> CheckIsValid(Functor <span class="comment">/* functor */</span>) {}</div>
<div class="line"><a id="l02181" name="l02181"></a><span class="lineno"> 2181</span> </div>
<div class="line"><a id="l02182" name="l02182"></a><span class="lineno"> 2182</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02183" name="l02183"></a><span class="lineno"> 2183</span>  <span class="keyword">static</span> <span class="keyword">auto</span> Invoke(Functor f, <span class="keyword">const</span> T&amp; arg) -&gt; <span class="keyword">decltype</span>(f(arg)) {</div>
<div class="line"><a id="l02184" name="l02184"></a><span class="lineno"> 2184</span>    <span class="keywordflow">return</span> f(arg);</div>
<div class="line"><a id="l02185" name="l02185"></a><span class="lineno"> 2185</span>  }</div>
<div class="line"><a id="l02186" name="l02186"></a><span class="lineno"> 2186</span>};</div>
<div class="line"><a id="l02187" name="l02187"></a><span class="lineno"> 2187</span> </div>
<div class="line"><a id="l02188" name="l02188"></a><span class="lineno"> 2188</span><span class="comment">// Specialization for function pointers.</span></div>
<div class="line"><a id="l02189" name="l02189"></a><span class="lineno"> 2189</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> ArgType, <span class="keyword">typename</span> ResType&gt;</div>
<div class="line"><a id="l02190" name="l02190"></a><span class="lineno"> 2190</span><span class="keyword">struct </span>CallableTraits&lt;ResType (*)(ArgType)&gt; {</div>
<div class="line"><a id="l02191" name="l02191"></a><span class="lineno"> 2191</span>  <span class="keyword">typedef</span> ResType ResultType;</div>
<div class="line"><a id="l02192" name="l02192"></a><span class="lineno"> 2192</span>  <span class="keyword">typedef</span> ResType (*StorageType)(ArgType);</div>
<div class="line"><a id="l02193" name="l02193"></a><span class="lineno"> 2193</span> </div>
<div class="line"><a id="l02194" name="l02194"></a><span class="lineno"> 2194</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> CheckIsValid(ResType (*f)(ArgType)) {</div>
<div class="line"><a id="l02195" name="l02195"></a><span class="lineno"> 2195</span>    GTEST_CHECK_(f != <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l02196" name="l02196"></a><span class="lineno"> 2196</span>        &lt;&lt; <span class="stringliteral">&quot;NULL function pointer is passed into ResultOf().&quot;</span>;</div>
<div class="line"><a id="l02197" name="l02197"></a><span class="lineno"> 2197</span>  }</div>
<div class="line"><a id="l02198" name="l02198"></a><span class="lineno"> 2198</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02199" name="l02199"></a><span class="lineno"> 2199</span>  <span class="keyword">static</span> ResType Invoke(ResType (*f)(ArgType), T arg) {</div>
<div class="line"><a id="l02200" name="l02200"></a><span class="lineno"> 2200</span>    <span class="keywordflow">return</span> (*f)(arg);</div>
<div class="line"><a id="l02201" name="l02201"></a><span class="lineno"> 2201</span>  }</div>
<div class="line"><a id="l02202" name="l02202"></a><span class="lineno"> 2202</span>};</div>
<div class="line"><a id="l02203" name="l02203"></a><span class="lineno"> 2203</span> </div>
<div class="line"><a id="l02204" name="l02204"></a><span class="lineno"> 2204</span><span class="comment">// Implements the ResultOf() matcher for matching a return value of a</span></div>
<div class="line"><a id="l02205" name="l02205"></a><span class="lineno"> 2205</span><span class="comment">// unary function of an object.</span></div>
<div class="line"><a id="l02206" name="l02206"></a><span class="lineno"> 2206</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Callable, <span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02207" name="l02207"></a><span class="lineno"> 2207</span><span class="keyword">class </span>ResultOfMatcher {</div>
<div class="line"><a id="l02208" name="l02208"></a><span class="lineno"> 2208</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02209" name="l02209"></a><span class="lineno"> 2209</span>  ResultOfMatcher(Callable callable, InnerMatcher matcher)</div>
<div class="line"><a id="l02210" name="l02210"></a><span class="lineno"> 2210</span>      : ResultOfMatcher(<span class="comment">/*result_description=*/</span><span class="stringliteral">&quot;&quot;</span>, std::move(callable),</div>
<div class="line"><a id="l02211" name="l02211"></a><span class="lineno"> 2211</span>                        std::move(matcher)) {}</div>
<div class="line"><a id="l02212" name="l02212"></a><span class="lineno"> 2212</span> </div>
<div class="line"><a id="l02213" name="l02213"></a><span class="lineno"> 2213</span>  ResultOfMatcher(<span class="keyword">const</span> std::string&amp; result_description, Callable callable,</div>
<div class="line"><a id="l02214" name="l02214"></a><span class="lineno"> 2214</span>                  InnerMatcher matcher)</div>
<div class="line"><a id="l02215" name="l02215"></a><span class="lineno"> 2215</span>      : result_description_(result_description),</div>
<div class="line"><a id="l02216" name="l02216"></a><span class="lineno"> 2216</span>        callable_(std::move(callable)),</div>
<div class="line"><a id="l02217" name="l02217"></a><span class="lineno"> 2217</span>        matcher_(std::move(matcher)) {</div>
<div class="line"><a id="l02218" name="l02218"></a><span class="lineno"> 2218</span>    CallableTraits&lt;Callable&gt;::CheckIsValid(callable_);</div>
<div class="line"><a id="l02219" name="l02219"></a><span class="lineno"> 2219</span>  }</div>
<div class="line"><a id="l02220" name="l02220"></a><span class="lineno"> 2220</span> </div>
<div class="line"><a id="l02221" name="l02221"></a><span class="lineno"> 2221</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02222" name="l02222"></a><span class="lineno"> 2222</span>  <span class="keyword">operator</span> Matcher&lt;T&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02223" name="l02223"></a><span class="lineno"> 2223</span>    <span class="keywordflow">return</span> Matcher&lt;T&gt;(</div>
<div class="line"><a id="l02224" name="l02224"></a><span class="lineno"> 2224</span>        <span class="keyword">new</span> Impl&lt;const T&amp;&gt;(result_description_, callable_, matcher_));</div>
<div class="line"><a id="l02225" name="l02225"></a><span class="lineno"> 2225</span>  }</div>
<div class="line"><a id="l02226" name="l02226"></a><span class="lineno"> 2226</span> </div>
<div class="line"><a id="l02227" name="l02227"></a><span class="lineno"> 2227</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02228" name="l02228"></a><span class="lineno"> 2228</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CallableTraits&lt;Callable&gt;::StorageType CallableStorageType;</div>
<div class="line"><a id="l02229" name="l02229"></a><span class="lineno"> 2229</span> </div>
<div class="line"><a id="l02230" name="l02230"></a><span class="lineno"> 2230</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02231" name="l02231"></a><span class="lineno"> 2231</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;T&gt; {</div>
<div class="line"><a id="l02232" name="l02232"></a><span class="lineno"> 2232</span>    <span class="keyword">using </span>ResultType = <span class="keyword">decltype</span>(CallableTraits&lt;Callable&gt;::template Invoke&lt;T&gt;(</div>
<div class="line"><a id="l02233" name="l02233"></a><span class="lineno"> 2233</span>        std::declval&lt;CallableStorageType&gt;(), std::declval&lt;T&gt;()));</div>
<div class="line"><a id="l02234" name="l02234"></a><span class="lineno"> 2234</span> </div>
<div class="line"><a id="l02235" name="l02235"></a><span class="lineno"> 2235</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l02236" name="l02236"></a><span class="lineno"> 2236</span>    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l02237" name="l02237"></a><span class="lineno"> 2237</span>    Impl(<span class="keyword">const</span> std::string&amp; result_description,</div>
<div class="line"><a id="l02238" name="l02238"></a><span class="lineno"> 2238</span>         <span class="keyword">const</span> CallableStorageType&amp; callable, <span class="keyword">const</span> M&amp; matcher)</div>
<div class="line"><a id="l02239" name="l02239"></a><span class="lineno"> 2239</span>        : result_description_(result_description),</div>
<div class="line"><a id="l02240" name="l02240"></a><span class="lineno"> 2240</span>          callable_(callable),</div>
<div class="line"><a id="l02241" name="l02241"></a><span class="lineno"> 2241</span>          matcher_(MatcherCast&lt;ResultType&gt;(matcher)) {}</div>
<div class="line"><a id="l02242" name="l02242"></a><span class="lineno"> 2242</span> </div>
<div class="line"><a id="l02243" name="l02243"></a><span class="lineno"> 2243</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02244" name="l02244"></a><span class="lineno"> 2244</span>      <span class="keywordflow">if</span> (result_description_.empty()) {</div>
<div class="line"><a id="l02245" name="l02245"></a><span class="lineno"> 2245</span>        *os &lt;&lt; <span class="stringliteral">&quot;is mapped by the given callable to a value that &quot;</span>;</div>
<div class="line"><a id="l02246" name="l02246"></a><span class="lineno"> 2246</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02247" name="l02247"></a><span class="lineno"> 2247</span>        *os &lt;&lt; <span class="stringliteral">&quot;whose &quot;</span> &lt;&lt; result_description_ &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02248" name="l02248"></a><span class="lineno"> 2248</span>      }</div>
<div class="line"><a id="l02249" name="l02249"></a><span class="lineno"> 2249</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02250" name="l02250"></a><span class="lineno"> 2250</span>    }</div>
<div class="line"><a id="l02251" name="l02251"></a><span class="lineno"> 2251</span> </div>
<div class="line"><a id="l02252" name="l02252"></a><span class="lineno"> 2252</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02253" name="l02253"></a><span class="lineno"> 2253</span>      <span class="keywordflow">if</span> (result_description_.empty()) {</div>
<div class="line"><a id="l02254" name="l02254"></a><span class="lineno"> 2254</span>        *os &lt;&lt; <span class="stringliteral">&quot;is mapped by the given callable to a value that &quot;</span>;</div>
<div class="line"><a id="l02255" name="l02255"></a><span class="lineno"> 2255</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02256" name="l02256"></a><span class="lineno"> 2256</span>        *os &lt;&lt; <span class="stringliteral">&quot;whose &quot;</span> &lt;&lt; result_description_ &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02257" name="l02257"></a><span class="lineno"> 2257</span>      }</div>
<div class="line"><a id="l02258" name="l02258"></a><span class="lineno"> 2258</span>      matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02259" name="l02259"></a><span class="lineno"> 2259</span>    }</div>
<div class="line"><a id="l02260" name="l02260"></a><span class="lineno"> 2260</span> </div>
<div class="line"><a id="l02261" name="l02261"></a><span class="lineno"> 2261</span>    <span class="keywordtype">bool</span> MatchAndExplain(T obj, MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02262" name="l02262"></a><span class="lineno"> 2262</span>      <span class="keywordflow">if</span> (result_description_.empty()) {</div>
<div class="line"><a id="l02263" name="l02263"></a><span class="lineno"> 2263</span>        *listener &lt;&lt; <span class="stringliteral">&quot;which is mapped by the given callable to &quot;</span>;</div>
<div class="line"><a id="l02264" name="l02264"></a><span class="lineno"> 2264</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02265" name="l02265"></a><span class="lineno"> 2265</span>        *listener &lt;&lt; <span class="stringliteral">&quot;whose &quot;</span> &lt;&lt; result_description_ &lt;&lt; <span class="stringliteral">&quot; is &quot;</span>;</div>
<div class="line"><a id="l02266" name="l02266"></a><span class="lineno"> 2266</span>      }</div>
<div class="line"><a id="l02267" name="l02267"></a><span class="lineno"> 2267</span>      <span class="comment">// Cannot pass the return value directly to MatchPrintAndExplain, which</span></div>
<div class="line"><a id="l02268" name="l02268"></a><span class="lineno"> 2268</span>      <span class="comment">// takes a non-const reference as argument.</span></div>
<div class="line"><a id="l02269" name="l02269"></a><span class="lineno"> 2269</span>      <span class="comment">// Also, specifying template argument explicitly is needed because T could</span></div>
<div class="line"><a id="l02270" name="l02270"></a><span class="lineno"> 2270</span>      <span class="comment">// be a non-const reference (e.g. Matcher&lt;Uncopyable&amp;&gt;).</span></div>
<div class="line"><a id="l02271" name="l02271"></a><span class="lineno"> 2271</span>      ResultType result =</div>
<div class="line"><a id="l02272" name="l02272"></a><span class="lineno"> 2272</span>          CallableTraits&lt;Callable&gt;::template Invoke&lt;T&gt;(callable_, obj);</div>
<div class="line"><a id="l02273" name="l02273"></a><span class="lineno"> 2273</span>      <span class="keywordflow">return</span> MatchPrintAndExplain(result, matcher_, listener);</div>
<div class="line"><a id="l02274" name="l02274"></a><span class="lineno"> 2274</span>    }</div>
<div class="line"><a id="l02275" name="l02275"></a><span class="lineno"> 2275</span> </div>
<div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span>    <span class="keyword">const</span> std::string result_description_;</div>
<div class="line"><a id="l02278" name="l02278"></a><span class="lineno"> 2278</span>    <span class="comment">// Functors often define operator() as non-const method even though</span></div>
<div class="line"><a id="l02279" name="l02279"></a><span class="lineno"> 2279</span>    <span class="comment">// they are actually stateless. But we need to use them even when</span></div>
<div class="line"><a id="l02280" name="l02280"></a><span class="lineno"> 2280</span>    <span class="comment">// &#39;this&#39; is a const pointer. It&#39;s the user&#39;s responsibility not to</span></div>
<div class="line"><a id="l02281" name="l02281"></a><span class="lineno"> 2281</span>    <span class="comment">// use stateful callables with ResultOf(), which doesn&#39;t guarantee</span></div>
<div class="line"><a id="l02282" name="l02282"></a><span class="lineno"> 2282</span>    <span class="comment">// how many times the callable will be invoked.</span></div>
<div class="line"><a id="l02283" name="l02283"></a><span class="lineno"> 2283</span>    <span class="keyword">mutable</span> CallableStorageType callable_;</div>
<div class="line"><a id="l02284" name="l02284"></a><span class="lineno"> 2284</span>    <span class="keyword">const</span> Matcher&lt;ResultType&gt; matcher_;</div>
<div class="line"><a id="l02285" name="l02285"></a><span class="lineno"> 2285</span>  };  <span class="comment">// class Impl</span></div>
<div class="line"><a id="l02286" name="l02286"></a><span class="lineno"> 2286</span> </div>
<div class="line"><a id="l02287" name="l02287"></a><span class="lineno"> 2287</span>  <span class="keyword">const</span> std::string result_description_;</div>
<div class="line"><a id="l02288" name="l02288"></a><span class="lineno"> 2288</span>  <span class="keyword">const</span> CallableStorageType callable_;</div>
<div class="line"><a id="l02289" name="l02289"></a><span class="lineno"> 2289</span>  <span class="keyword">const</span> InnerMatcher matcher_;</div>
<div class="line"><a id="l02290" name="l02290"></a><span class="lineno"> 2290</span>};</div>
<div class="line"><a id="l02291" name="l02291"></a><span class="lineno"> 2291</span> </div>
<div class="line"><a id="l02292" name="l02292"></a><span class="lineno"> 2292</span><span class="comment">// Implements a matcher that checks the size of an STL-style container.</span></div>
<div class="line"><a id="l02293" name="l02293"></a><span class="lineno"> 2293</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> SizeMatcher&gt;</div>
<div class="line"><a id="l02294" name="l02294"></a><span class="lineno"> 2294</span><span class="keyword">class </span>SizeIsMatcher {</div>
<div class="line"><a id="l02295" name="l02295"></a><span class="lineno"> 2295</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02296" name="l02296"></a><span class="lineno"> 2296</span>  <span class="keyword">explicit</span> SizeIsMatcher(<span class="keyword">const</span> SizeMatcher&amp; size_matcher)</div>
<div class="line"><a id="l02297" name="l02297"></a><span class="lineno"> 2297</span>      : size_matcher_(size_matcher) {}</div>
<div class="line"><a id="l02298" name="l02298"></a><span class="lineno"> 2298</span> </div>
<div class="line"><a id="l02299" name="l02299"></a><span class="lineno"> 2299</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02300" name="l02300"></a><span class="lineno"> 2300</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02301" name="l02301"></a><span class="lineno"> 2301</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(<span class="keyword">new</span> Impl&lt;const Container&amp;&gt;(size_matcher_));</div>
<div class="line"><a id="l02302" name="l02302"></a><span class="lineno"> 2302</span>  }</div>
<div class="line"><a id="l02303" name="l02303"></a><span class="lineno"> 2303</span> </div>
<div class="line"><a id="l02304" name="l02304"></a><span class="lineno"> 2304</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02305" name="l02305"></a><span class="lineno"> 2305</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Container&gt; {</div>
<div class="line"><a id="l02306" name="l02306"></a><span class="lineno"> 2306</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l02307" name="l02307"></a><span class="lineno"> 2307</span>    <span class="keyword">using </span>SizeType = <span class="keyword">decltype</span>(std::declval&lt;Container&gt;().size());</div>
<div class="line"><a id="l02308" name="l02308"></a><span class="lineno"> 2308</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> SizeMatcher&amp; size_matcher)</div>
<div class="line"><a id="l02309" name="l02309"></a><span class="lineno"> 2309</span>        : size_matcher_(MatcherCast&lt;SizeType&gt;(size_matcher)) {}</div>
<div class="line"><a id="l02310" name="l02310"></a><span class="lineno"> 2310</span> </div>
<div class="line"><a id="l02311" name="l02311"></a><span class="lineno"> 2311</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02312" name="l02312"></a><span class="lineno"> 2312</span>      *os &lt;&lt; <span class="stringliteral">&quot;size &quot;</span>;</div>
<div class="line"><a id="l02313" name="l02313"></a><span class="lineno"> 2313</span>      size_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02314" name="l02314"></a><span class="lineno"> 2314</span>    }</div>
<div class="line"><a id="l02315" name="l02315"></a><span class="lineno"> 2315</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02316" name="l02316"></a><span class="lineno"> 2316</span>      *os &lt;&lt; <span class="stringliteral">&quot;size &quot;</span>;</div>
<div class="line"><a id="l02317" name="l02317"></a><span class="lineno"> 2317</span>      size_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02318" name="l02318"></a><span class="lineno"> 2318</span>    }</div>
<div class="line"><a id="l02319" name="l02319"></a><span class="lineno"> 2319</span> </div>
<div class="line"><a id="l02320" name="l02320"></a><span class="lineno"> 2320</span>    <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l02321" name="l02321"></a><span class="lineno"> 2321</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02322" name="l02322"></a><span class="lineno"> 2322</span>      SizeType size = container.size();</div>
<div class="line"><a id="l02323" name="l02323"></a><span class="lineno"> 2323</span>      StringMatchResultListener size_listener;</div>
<div class="line"><a id="l02324" name="l02324"></a><span class="lineno"> 2324</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> result = size_matcher_.MatchAndExplain(size, &amp;size_listener);</div>
<div class="line"><a id="l02325" name="l02325"></a><span class="lineno"> 2325</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose size &quot;</span> &lt;&lt; size</div>
<div class="line"><a id="l02326" name="l02326"></a><span class="lineno"> 2326</span>                &lt;&lt; (result ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l02327" name="l02327"></a><span class="lineno"> 2327</span>      PrintIfNotEmpty(size_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02328" name="l02328"></a><span class="lineno"> 2328</span>      <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l02329" name="l02329"></a><span class="lineno"> 2329</span>    }</div>
<div class="line"><a id="l02330" name="l02330"></a><span class="lineno"> 2330</span> </div>
<div class="line"><a id="l02331" name="l02331"></a><span class="lineno"> 2331</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l02332" name="l02332"></a><span class="lineno"> 2332</span>    <span class="keyword">const</span> Matcher&lt;SizeType&gt; size_matcher_;</div>
<div class="line"><a id="l02333" name="l02333"></a><span class="lineno"> 2333</span>  };</div>
<div class="line"><a id="l02334" name="l02334"></a><span class="lineno"> 2334</span> </div>
<div class="line"><a id="l02335" name="l02335"></a><span class="lineno"> 2335</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02336" name="l02336"></a><span class="lineno"> 2336</span>  <span class="keyword">const</span> SizeMatcher size_matcher_;</div>
<div class="line"><a id="l02337" name="l02337"></a><span class="lineno"> 2337</span>};</div>
<div class="line"><a id="l02338" name="l02338"></a><span class="lineno"> 2338</span> </div>
<div class="line"><a id="l02339" name="l02339"></a><span class="lineno"> 2339</span><span class="comment">// Implements a matcher that checks the begin()..end() distance of an STL-style</span></div>
<div class="line"><a id="l02340" name="l02340"></a><span class="lineno"> 2340</span><span class="comment">// container.</span></div>
<div class="line"><a id="l02341" name="l02341"></a><span class="lineno"> 2341</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> DistanceMatcher&gt;</div>
<div class="line"><a id="l02342" name="l02342"></a><span class="lineno"> 2342</span><span class="keyword">class </span>BeginEndDistanceIsMatcher {</div>
<div class="line"><a id="l02343" name="l02343"></a><span class="lineno"> 2343</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02344" name="l02344"></a><span class="lineno"> 2344</span>  <span class="keyword">explicit</span> BeginEndDistanceIsMatcher(<span class="keyword">const</span> DistanceMatcher&amp; distance_matcher)</div>
<div class="line"><a id="l02345" name="l02345"></a><span class="lineno"> 2345</span>      : distance_matcher_(distance_matcher) {}</div>
<div class="line"><a id="l02346" name="l02346"></a><span class="lineno"> 2346</span> </div>
<div class="line"><a id="l02347" name="l02347"></a><span class="lineno"> 2347</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02348" name="l02348"></a><span class="lineno"> 2348</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02349" name="l02349"></a><span class="lineno"> 2349</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(<span class="keyword">new</span> Impl&lt;const Container&amp;&gt;(distance_matcher_));</div>
<div class="line"><a id="l02350" name="l02350"></a><span class="lineno"> 2350</span>  }</div>
<div class="line"><a id="l02351" name="l02351"></a><span class="lineno"> 2351</span> </div>
<div class="line"><a id="l02352" name="l02352"></a><span class="lineno"> 2352</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02353" name="l02353"></a><span class="lineno"> 2353</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Container&gt; {</div>
<div class="line"><a id="l02354" name="l02354"></a><span class="lineno"> 2354</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l02355" name="l02355"></a><span class="lineno"> 2355</span>    <span class="keyword">typedef</span> internal::StlContainerView&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(</div>
<div class="line"><a id="l02356" name="l02356"></a><span class="lineno"> 2356</span>        Container)&gt;</div>
<div class="line"><a id="l02357" name="l02357"></a><span class="lineno"> 2357</span>        ContainerView;</div>
<div class="line"><a id="l02358" name="l02358"></a><span class="lineno"> 2358</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits&lt;</div>
<div class="line"><a id="l02359" name="l02359"></a><span class="lineno"> 2359</span>        <span class="keyword">typename</span> ContainerView::type::const_iterator&gt;::difference_type</div>
<div class="line"><a id="l02360" name="l02360"></a><span class="lineno"> 2360</span>        DistanceType;</div>
<div class="line"><a id="l02361" name="l02361"></a><span class="lineno"> 2361</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> DistanceMatcher&amp; distance_matcher)</div>
<div class="line"><a id="l02362" name="l02362"></a><span class="lineno"> 2362</span>        : distance_matcher_(MatcherCast&lt;DistanceType&gt;(distance_matcher)) {}</div>
<div class="line"><a id="l02363" name="l02363"></a><span class="lineno"> 2363</span> </div>
<div class="line"><a id="l02364" name="l02364"></a><span class="lineno"> 2364</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02365" name="l02365"></a><span class="lineno"> 2365</span>      *os &lt;&lt; <span class="stringliteral">&quot;distance between begin() and end() &quot;</span>;</div>
<div class="line"><a id="l02366" name="l02366"></a><span class="lineno"> 2366</span>      distance_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02367" name="l02367"></a><span class="lineno"> 2367</span>    }</div>
<div class="line"><a id="l02368" name="l02368"></a><span class="lineno"> 2368</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02369" name="l02369"></a><span class="lineno"> 2369</span>      *os &lt;&lt; <span class="stringliteral">&quot;distance between begin() and end() &quot;</span>;</div>
<div class="line"><a id="l02370" name="l02370"></a><span class="lineno"> 2370</span>      distance_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02371" name="l02371"></a><span class="lineno"> 2371</span>    }</div>
<div class="line"><a id="l02372" name="l02372"></a><span class="lineno"> 2372</span> </div>
<div class="line"><a id="l02373" name="l02373"></a><span class="lineno"> 2373</span>    <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l02374" name="l02374"></a><span class="lineno"> 2374</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02375" name="l02375"></a><span class="lineno"> 2375</span>      <span class="keyword">using </span>std::begin;</div>
<div class="line"><a id="l02376" name="l02376"></a><span class="lineno"> 2376</span>      <span class="keyword">using </span>std::end;</div>
<div class="line"><a id="l02377" name="l02377"></a><span class="lineno"> 2377</span>      DistanceType distance = std::distance(begin(container), end(container));</div>
<div class="line"><a id="l02378" name="l02378"></a><span class="lineno"> 2378</span>      StringMatchResultListener distance_listener;</div>
<div class="line"><a id="l02379" name="l02379"></a><span class="lineno"> 2379</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> result =</div>
<div class="line"><a id="l02380" name="l02380"></a><span class="lineno"> 2380</span>          distance_matcher_.MatchAndExplain(distance, &amp;distance_listener);</div>
<div class="line"><a id="l02381" name="l02381"></a><span class="lineno"> 2381</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose distance between begin() and end() &quot;</span> &lt;&lt; distance</div>
<div class="line"><a id="l02382" name="l02382"></a><span class="lineno"> 2382</span>                &lt;&lt; (result ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l02383" name="l02383"></a><span class="lineno"> 2383</span>      PrintIfNotEmpty(distance_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02384" name="l02384"></a><span class="lineno"> 2384</span>      <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l02385" name="l02385"></a><span class="lineno"> 2385</span>    }</div>
<div class="line"><a id="l02386" name="l02386"></a><span class="lineno"> 2386</span> </div>
<div class="line"><a id="l02387" name="l02387"></a><span class="lineno"> 2387</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l02388" name="l02388"></a><span class="lineno"> 2388</span>    <span class="keyword">const</span> Matcher&lt;DistanceType&gt; distance_matcher_;</div>
<div class="line"><a id="l02389" name="l02389"></a><span class="lineno"> 2389</span>  };</div>
<div class="line"><a id="l02390" name="l02390"></a><span class="lineno"> 2390</span> </div>
<div class="line"><a id="l02391" name="l02391"></a><span class="lineno"> 2391</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02392" name="l02392"></a><span class="lineno"> 2392</span>  <span class="keyword">const</span> DistanceMatcher distance_matcher_;</div>
<div class="line"><a id="l02393" name="l02393"></a><span class="lineno"> 2393</span>};</div>
<div class="line"><a id="l02394" name="l02394"></a><span class="lineno"> 2394</span> </div>
<div class="line"><a id="l02395" name="l02395"></a><span class="lineno"> 2395</span><span class="comment">// Implements an equality matcher for any STL-style container whose elements</span></div>
<div class="line"><a id="l02396" name="l02396"></a><span class="lineno"> 2396</span><span class="comment">// support ==. This matcher is like Eq(), but its failure explanations provide</span></div>
<div class="line"><a id="l02397" name="l02397"></a><span class="lineno"> 2397</span><span class="comment">// more detailed information that is useful when the container is used as a set.</span></div>
<div class="line"><a id="l02398" name="l02398"></a><span class="lineno"> 2398</span><span class="comment">// The failure message reports elements that are in one of the operands but not</span></div>
<div class="line"><a id="l02399" name="l02399"></a><span class="lineno"> 2399</span><span class="comment">// the other. The failure messages do not report duplicate or out-of-order</span></div>
<div class="line"><a id="l02400" name="l02400"></a><span class="lineno"> 2400</span><span class="comment">// elements in the containers (which don&#39;t properly matter to sets, but can</span></div>
<div class="line"><a id="l02401" name="l02401"></a><span class="lineno"> 2401</span><span class="comment">// occur if the containers are vectors or lists, for example).</span></div>
<div class="line"><a id="l02402" name="l02402"></a><span class="lineno"> 2402</span><span class="comment">//</span></div>
<div class="line"><a id="l02403" name="l02403"></a><span class="lineno"> 2403</span><span class="comment">// Uses the container&#39;s const_iterator, value_type, operator ==,</span></div>
<div class="line"><a id="l02404" name="l02404"></a><span class="lineno"> 2404</span><span class="comment">// begin(), and end().</span></div>
<div class="line"><a id="l02405" name="l02405"></a><span class="lineno"> 2405</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02406" name="l02406"></a><span class="lineno"> 2406</span><span class="keyword">class </span>ContainerEqMatcher {</div>
<div class="line"><a id="l02407" name="l02407"></a><span class="lineno"> 2407</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02408" name="l02408"></a><span class="lineno"> 2408</span>  <span class="keyword">typedef</span> internal::StlContainerView&lt;Container&gt; View;</div>
<div class="line"><a id="l02409" name="l02409"></a><span class="lineno"> 2409</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::type StlContainer;</div>
<div class="line"><a id="l02410" name="l02410"></a><span class="lineno"> 2410</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::const_reference StlContainerReference;</div>
<div class="line"><a id="l02411" name="l02411"></a><span class="lineno"> 2411</span> </div>
<div class="line"><a id="l02412" name="l02412"></a><span class="lineno"> 2412</span>  <span class="keyword">static_assert</span>(!std::is_const&lt;Container&gt;::value,</div>
<div class="line"><a id="l02413" name="l02413"></a><span class="lineno"> 2413</span>                <span class="stringliteral">&quot;Container type must not be const&quot;</span>);</div>
<div class="line"><a id="l02414" name="l02414"></a><span class="lineno"> 2414</span>  <span class="keyword">static_assert</span>(!std::is_reference&lt;Container&gt;::value,</div>
<div class="line"><a id="l02415" name="l02415"></a><span class="lineno"> 2415</span>                <span class="stringliteral">&quot;Container type must not be a reference&quot;</span>);</div>
<div class="line"><a id="l02416" name="l02416"></a><span class="lineno"> 2416</span> </div>
<div class="line"><a id="l02417" name="l02417"></a><span class="lineno"> 2417</span>  <span class="comment">// We make a copy of expected in case the elements in it are modified</span></div>
<div class="line"><a id="l02418" name="l02418"></a><span class="lineno"> 2418</span>  <span class="comment">// after this matcher is created.</span></div>
<div class="line"><a id="l02419" name="l02419"></a><span class="lineno"> 2419</span>  <span class="keyword">explicit</span> ContainerEqMatcher(<span class="keyword">const</span> Container&amp; expected)</div>
<div class="line"><a id="l02420" name="l02420"></a><span class="lineno"> 2420</span>      : expected_(View::Copy(expected)) {}</div>
<div class="line"><a id="l02421" name="l02421"></a><span class="lineno"> 2421</span> </div>
<div class="line"><a id="l02422" name="l02422"></a><span class="lineno"> 2422</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02423" name="l02423"></a><span class="lineno"> 2423</span>    *os &lt;&lt; <span class="stringliteral">&quot;equals &quot;</span>;</div>
<div class="line"><a id="l02424" name="l02424"></a><span class="lineno"> 2424</span>    UniversalPrint(expected_, os);</div>
<div class="line"><a id="l02425" name="l02425"></a><span class="lineno"> 2425</span>  }</div>
<div class="line"><a id="l02426" name="l02426"></a><span class="lineno"> 2426</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02427" name="l02427"></a><span class="lineno"> 2427</span>    *os &lt;&lt; <span class="stringliteral">&quot;does not equal &quot;</span>;</div>
<div class="line"><a id="l02428" name="l02428"></a><span class="lineno"> 2428</span>    UniversalPrint(expected_, os);</div>
<div class="line"><a id="l02429" name="l02429"></a><span class="lineno"> 2429</span>  }</div>
<div class="line"><a id="l02430" name="l02430"></a><span class="lineno"> 2430</span> </div>
<div class="line"><a id="l02431" name="l02431"></a><span class="lineno"> 2431</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> LhsContainer&gt;</div>
<div class="line"><a id="l02432" name="l02432"></a><span class="lineno"> 2432</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> LhsContainer&amp; lhs,</div>
<div class="line"><a id="l02433" name="l02433"></a><span class="lineno"> 2433</span>                       MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02434" name="l02434"></a><span class="lineno"> 2434</span>    <span class="keyword">typedef</span> internal::StlContainerView&lt;</div>
<div class="line"><a id="l02435" name="l02435"></a><span class="lineno"> 2435</span>        <span class="keyword">typename</span> std::remove_const&lt;LhsContainer&gt;::type&gt;</div>
<div class="line"><a id="l02436" name="l02436"></a><span class="lineno"> 2436</span>        LhsView;</div>
<div class="line"><a id="l02437" name="l02437"></a><span class="lineno"> 2437</span>    StlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);</div>
<div class="line"><a id="l02438" name="l02438"></a><span class="lineno"> 2438</span>    <span class="keywordflow">if</span> (lhs_stl_container == expected_) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l02439" name="l02439"></a><span class="lineno"> 2439</span> </div>
<div class="line"><a id="l02440" name="l02440"></a><span class="lineno"> 2440</span>    ::std::ostream* <span class="keyword">const</span> os = listener-&gt;stream();</div>
<div class="line"><a id="l02441" name="l02441"></a><span class="lineno"> 2441</span>    <span class="keywordflow">if</span> (os != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l02442" name="l02442"></a><span class="lineno"> 2442</span>      <span class="comment">// Something is different. Check for extra values first.</span></div>
<div class="line"><a id="l02443" name="l02443"></a><span class="lineno"> 2443</span>      <span class="keywordtype">bool</span> printed_header = <span class="keyword">false</span>;</div>
<div class="line"><a id="l02444" name="l02444"></a><span class="lineno"> 2444</span>      <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = lhs_stl_container.begin(); it != lhs_stl_container.end();</div>
<div class="line"><a id="l02445" name="l02445"></a><span class="lineno"> 2445</span>           ++it) {</div>
<div class="line"><a id="l02446" name="l02446"></a><span class="lineno"> 2446</span>        <span class="keywordflow">if</span> (internal::ArrayAwareFind(expected_.begin(), expected_.end(), *it) ==</div>
<div class="line"><a id="l02447" name="l02447"></a><span class="lineno"> 2447</span>            expected_.end()) {</div>
<div class="line"><a id="l02448" name="l02448"></a><span class="lineno"> 2448</span>          <span class="keywordflow">if</span> (printed_header) {</div>
<div class="line"><a id="l02449" name="l02449"></a><span class="lineno"> 2449</span>            *os &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l02450" name="l02450"></a><span class="lineno"> 2450</span>          } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02451" name="l02451"></a><span class="lineno"> 2451</span>            *os &lt;&lt; <span class="stringliteral">&quot;which has these unexpected elements: &quot;</span>;</div>
<div class="line"><a id="l02452" name="l02452"></a><span class="lineno"> 2452</span>            printed_header = <span class="keyword">true</span>;</div>
<div class="line"><a id="l02453" name="l02453"></a><span class="lineno"> 2453</span>          }</div>
<div class="line"><a id="l02454" name="l02454"></a><span class="lineno"> 2454</span>          UniversalPrint(*it, os);</div>
<div class="line"><a id="l02455" name="l02455"></a><span class="lineno"> 2455</span>        }</div>
<div class="line"><a id="l02456" name="l02456"></a><span class="lineno"> 2456</span>      }</div>
<div class="line"><a id="l02457" name="l02457"></a><span class="lineno"> 2457</span> </div>
<div class="line"><a id="l02458" name="l02458"></a><span class="lineno"> 2458</span>      <span class="comment">// Now check for missing values.</span></div>
<div class="line"><a id="l02459" name="l02459"></a><span class="lineno"> 2459</span>      <span class="keywordtype">bool</span> printed_header2 = <span class="keyword">false</span>;</div>
<div class="line"><a id="l02460" name="l02460"></a><span class="lineno"> 2460</span>      <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = expected_.begin(); it != expected_.end(); ++it) {</div>
<div class="line"><a id="l02461" name="l02461"></a><span class="lineno"> 2461</span>        <span class="keywordflow">if</span> (internal::ArrayAwareFind(lhs_stl_container.begin(),</div>
<div class="line"><a id="l02462" name="l02462"></a><span class="lineno"> 2462</span>                                     lhs_stl_container.end(),</div>
<div class="line"><a id="l02463" name="l02463"></a><span class="lineno"> 2463</span>                                     *it) == lhs_stl_container.end()) {</div>
<div class="line"><a id="l02464" name="l02464"></a><span class="lineno"> 2464</span>          <span class="keywordflow">if</span> (printed_header2) {</div>
<div class="line"><a id="l02465" name="l02465"></a><span class="lineno"> 2465</span>            *os &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l02466" name="l02466"></a><span class="lineno"> 2466</span>          } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02467" name="l02467"></a><span class="lineno"> 2467</span>            *os &lt;&lt; (printed_header ? <span class="stringliteral">&quot;,\nand&quot;</span> : <span class="stringliteral">&quot;which&quot;</span>)</div>
<div class="line"><a id="l02468" name="l02468"></a><span class="lineno"> 2468</span>                &lt;&lt; <span class="stringliteral">&quot; doesn&#39;t have these expected elements: &quot;</span>;</div>
<div class="line"><a id="l02469" name="l02469"></a><span class="lineno"> 2469</span>            printed_header2 = <span class="keyword">true</span>;</div>
<div class="line"><a id="l02470" name="l02470"></a><span class="lineno"> 2470</span>          }</div>
<div class="line"><a id="l02471" name="l02471"></a><span class="lineno"> 2471</span>          UniversalPrint(*it, os);</div>
<div class="line"><a id="l02472" name="l02472"></a><span class="lineno"> 2472</span>        }</div>
<div class="line"><a id="l02473" name="l02473"></a><span class="lineno"> 2473</span>      }</div>
<div class="line"><a id="l02474" name="l02474"></a><span class="lineno"> 2474</span>    }</div>
<div class="line"><a id="l02475" name="l02475"></a><span class="lineno"> 2475</span> </div>
<div class="line"><a id="l02476" name="l02476"></a><span class="lineno"> 2476</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02477" name="l02477"></a><span class="lineno"> 2477</span>  }</div>
<div class="line"><a id="l02478" name="l02478"></a><span class="lineno"> 2478</span> </div>
<div class="line"><a id="l02479" name="l02479"></a><span class="lineno"> 2479</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02480" name="l02480"></a><span class="lineno"> 2480</span>  <span class="keyword">const</span> StlContainer expected_;</div>
<div class="line"><a id="l02481" name="l02481"></a><span class="lineno"> 2481</span>};</div>
<div class="line"><a id="l02482" name="l02482"></a><span class="lineno"> 2482</span> </div>
<div class="line"><a id="l02483" name="l02483"></a><span class="lineno"> 2483</span><span class="comment">// A comparator functor that uses the &lt; operator to compare two values.</span></div>
<div class="line"><a id="l02484" name="l02484"></a><span class="lineno"> 2484</span><span class="keyword">struct </span>LessComparator {</div>
<div class="line"><a id="l02485" name="l02485"></a><span class="lineno"> 2485</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt;</div>
<div class="line"><a id="l02486" name="l02486"></a><span class="lineno"> 2486</span>  <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> T&amp; lhs, <span class="keyword">const</span> U&amp; rhs)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02487" name="l02487"></a><span class="lineno"> 2487</span>    <span class="keywordflow">return</span> lhs &lt; rhs;</div>
<div class="line"><a id="l02488" name="l02488"></a><span class="lineno"> 2488</span>  }</div>
<div class="line"><a id="l02489" name="l02489"></a><span class="lineno"> 2489</span>};</div>
<div class="line"><a id="l02490" name="l02490"></a><span class="lineno"> 2490</span> </div>
<div class="line"><a id="l02491" name="l02491"></a><span class="lineno"> 2491</span><span class="comment">// Implements WhenSortedBy(comparator, container_matcher).</span></div>
<div class="line"><a id="l02492" name="l02492"></a><span class="lineno"> 2492</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Comparator, <span class="keyword">typename</span> ContainerMatcher&gt;</div>
<div class="line"><a id="l02493" name="l02493"></a><span class="lineno"> 2493</span><span class="keyword">class </span>WhenSortedByMatcher {</div>
<div class="line"><a id="l02494" name="l02494"></a><span class="lineno"> 2494</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02495" name="l02495"></a><span class="lineno"> 2495</span>  WhenSortedByMatcher(<span class="keyword">const</span> Comparator&amp; comparator,</div>
<div class="line"><a id="l02496" name="l02496"></a><span class="lineno"> 2496</span>                      <span class="keyword">const</span> ContainerMatcher&amp; matcher)</div>
<div class="line"><a id="l02497" name="l02497"></a><span class="lineno"> 2497</span>      : comparator_(comparator), matcher_(matcher) {}</div>
<div class="line"><a id="l02498" name="l02498"></a><span class="lineno"> 2498</span> </div>
<div class="line"><a id="l02499" name="l02499"></a><span class="lineno"> 2499</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> LhsContainer&gt;</div>
<div class="line"><a id="l02500" name="l02500"></a><span class="lineno"> 2500</span>  <span class="keyword">operator</span> Matcher&lt;LhsContainer&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02501" name="l02501"></a><span class="lineno"> 2501</span>    <span class="keywordflow">return</span> MakeMatcher(<span class="keyword">new</span> Impl&lt;LhsContainer&gt;(comparator_, matcher_));</div>
<div class="line"><a id="l02502" name="l02502"></a><span class="lineno"> 2502</span>  }</div>
<div class="line"><a id="l02503" name="l02503"></a><span class="lineno"> 2503</span> </div>
<div class="line"><a id="l02504" name="l02504"></a><span class="lineno"> 2504</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> LhsContainer&gt;</div>
<div class="line"><a id="l02505" name="l02505"></a><span class="lineno"> 2505</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;LhsContainer&gt; {</div>
<div class="line"><a id="l02506" name="l02506"></a><span class="lineno"> 2506</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l02507" name="l02507"></a><span class="lineno"> 2507</span>    <span class="keyword">typedef</span> internal::StlContainerView&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(</div>
<div class="line"><a id="l02508" name="l02508"></a><span class="lineno"> 2508</span>        LhsContainer)&gt;</div>
<div class="line"><a id="l02509" name="l02509"></a><span class="lineno"> 2509</span>        LhsView;</div>
<div class="line"><a id="l02510" name="l02510"></a><span class="lineno"> 2510</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> LhsView::type LhsStlContainer;</div>
<div class="line"><a id="l02511" name="l02511"></a><span class="lineno"> 2511</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> LhsView::const_reference LhsStlContainerReference;</div>
<div class="line"><a id="l02512" name="l02512"></a><span class="lineno"> 2512</span>    <span class="comment">// Transforms std::pair&lt;const Key, Value&gt; into std::pair&lt;Key, Value&gt;</span></div>
<div class="line"><a id="l02513" name="l02513"></a><span class="lineno"> 2513</span>    <span class="comment">// so that we can match associative containers.</span></div>
<div class="line"><a id="l02514" name="l02514"></a><span class="lineno"> 2514</span>    <span class="keyword">typedef</span></div>
<div class="line"><a id="l02515" name="l02515"></a><span class="lineno"> 2515</span>        <span class="keyword">typename</span> RemoveConstFromKey&lt;typename LhsStlContainer::value_type&gt;::type</div>
<div class="line"><a id="l02516" name="l02516"></a><span class="lineno"> 2516</span>            LhsValue;</div>
<div class="line"><a id="l02517" name="l02517"></a><span class="lineno"> 2517</span> </div>
<div class="line"><a id="l02518" name="l02518"></a><span class="lineno"> 2518</span>    Impl(<span class="keyword">const</span> Comparator&amp; comparator, <span class="keyword">const</span> ContainerMatcher&amp; matcher)</div>
<div class="line"><a id="l02519" name="l02519"></a><span class="lineno"> 2519</span>        : comparator_(comparator), matcher_(matcher) {}</div>
<div class="line"><a id="l02520" name="l02520"></a><span class="lineno"> 2520</span> </div>
<div class="line"><a id="l02521" name="l02521"></a><span class="lineno"> 2521</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02522" name="l02522"></a><span class="lineno"> 2522</span>      *os &lt;&lt; <span class="stringliteral">&quot;(when sorted) &quot;</span>;</div>
<div class="line"><a id="l02523" name="l02523"></a><span class="lineno"> 2523</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02524" name="l02524"></a><span class="lineno"> 2524</span>    }</div>
<div class="line"><a id="l02525" name="l02525"></a><span class="lineno"> 2525</span> </div>
<div class="line"><a id="l02526" name="l02526"></a><span class="lineno"> 2526</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02527" name="l02527"></a><span class="lineno"> 2527</span>      *os &lt;&lt; <span class="stringliteral">&quot;(when sorted) &quot;</span>;</div>
<div class="line"><a id="l02528" name="l02528"></a><span class="lineno"> 2528</span>      matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02529" name="l02529"></a><span class="lineno"> 2529</span>    }</div>
<div class="line"><a id="l02530" name="l02530"></a><span class="lineno"> 2530</span> </div>
<div class="line"><a id="l02531" name="l02531"></a><span class="lineno"> 2531</span>    <span class="keywordtype">bool</span> MatchAndExplain(LhsContainer lhs,</div>
<div class="line"><a id="l02532" name="l02532"></a><span class="lineno"> 2532</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02533" name="l02533"></a><span class="lineno"> 2533</span>      LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);</div>
<div class="line"><a id="l02534" name="l02534"></a><span class="lineno"> 2534</span>      ::std::vector&lt;LhsValue&gt; sorted_container(lhs_stl_container.begin(),</div>
<div class="line"><a id="l02535" name="l02535"></a><span class="lineno"> 2535</span>                                               lhs_stl_container.end());</div>
<div class="line"><a id="l02536" name="l02536"></a><span class="lineno"> 2536</span>      ::std::sort(sorted_container.begin(), sorted_container.end(),</div>
<div class="line"><a id="l02537" name="l02537"></a><span class="lineno"> 2537</span>                  comparator_);</div>
<div class="line"><a id="l02538" name="l02538"></a><span class="lineno"> 2538</span> </div>
<div class="line"><a id="l02539" name="l02539"></a><span class="lineno"> 2539</span>      <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l02540" name="l02540"></a><span class="lineno"> 2540</span>        <span class="comment">// If the listener is not interested, we do not need to</span></div>
<div class="line"><a id="l02541" name="l02541"></a><span class="lineno"> 2541</span>        <span class="comment">// construct the inner explanation.</span></div>
<div class="line"><a id="l02542" name="l02542"></a><span class="lineno"> 2542</span>        <span class="keywordflow">return</span> matcher_.Matches(sorted_container);</div>
<div class="line"><a id="l02543" name="l02543"></a><span class="lineno"> 2543</span>      }</div>
<div class="line"><a id="l02544" name="l02544"></a><span class="lineno"> 2544</span> </div>
<div class="line"><a id="l02545" name="l02545"></a><span class="lineno"> 2545</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which is &quot;</span>;</div>
<div class="line"><a id="l02546" name="l02546"></a><span class="lineno"> 2546</span>      UniversalPrint(sorted_container, listener-&gt;stream());</div>
<div class="line"><a id="l02547" name="l02547"></a><span class="lineno"> 2547</span>      *listener &lt;&lt; <span class="stringliteral">&quot; when sorted&quot;</span>;</div>
<div class="line"><a id="l02548" name="l02548"></a><span class="lineno"> 2548</span> </div>
<div class="line"><a id="l02549" name="l02549"></a><span class="lineno"> 2549</span>      StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l02550" name="l02550"></a><span class="lineno"> 2550</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> match =</div>
<div class="line"><a id="l02551" name="l02551"></a><span class="lineno"> 2551</span>          matcher_.MatchAndExplain(sorted_container, &amp;inner_listener);</div>
<div class="line"><a id="l02552" name="l02552"></a><span class="lineno"> 2552</span>      PrintIfNotEmpty(inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02553" name="l02553"></a><span class="lineno"> 2553</span>      <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l02554" name="l02554"></a><span class="lineno"> 2554</span>    }</div>
<div class="line"><a id="l02555" name="l02555"></a><span class="lineno"> 2555</span> </div>
<div class="line"><a id="l02556" name="l02556"></a><span class="lineno"> 2556</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l02557" name="l02557"></a><span class="lineno"> 2557</span>    <span class="keyword">const</span> Comparator comparator_;</div>
<div class="line"><a id="l02558" name="l02558"></a><span class="lineno"> 2558</span>    <span class="keyword">const</span> Matcher&lt;const ::std::vector&lt;LhsValue&gt;&amp;&gt; matcher_;</div>
<div class="line"><a id="l02559" name="l02559"></a><span class="lineno"> 2559</span> </div>
<div class="line"><a id="l02560" name="l02560"></a><span class="lineno"> 2560</span>    Impl(<span class="keyword">const</span> Impl&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l02561" name="l02561"></a><span class="lineno"> 2561</span>    Impl&amp; operator=(<span class="keyword">const</span> Impl&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l02562" name="l02562"></a><span class="lineno"> 2562</span>  };</div>
<div class="line"><a id="l02563" name="l02563"></a><span class="lineno"> 2563</span> </div>
<div class="line"><a id="l02564" name="l02564"></a><span class="lineno"> 2564</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02565" name="l02565"></a><span class="lineno"> 2565</span>  <span class="keyword">const</span> Comparator comparator_;</div>
<div class="line"><a id="l02566" name="l02566"></a><span class="lineno"> 2566</span>  <span class="keyword">const</span> ContainerMatcher matcher_;</div>
<div class="line"><a id="l02567" name="l02567"></a><span class="lineno"> 2567</span>};</div>
<div class="line"><a id="l02568" name="l02568"></a><span class="lineno"> 2568</span> </div>
<div class="line"><a id="l02569" name="l02569"></a><span class="lineno"> 2569</span><span class="comment">// Implements Pointwise(tuple_matcher, rhs_container).  tuple_matcher</span></div>
<div class="line"><a id="l02570" name="l02570"></a><span class="lineno"> 2570</span><span class="comment">// must be able to be safely cast to Matcher&lt;std::tuple&lt;const T1&amp;, const</span></div>
<div class="line"><a id="l02571" name="l02571"></a><span class="lineno"> 2571</span><span class="comment">// T2&amp;&gt; &gt;, where T1 and T2 are the types of elements in the LHS</span></div>
<div class="line"><a id="l02572" name="l02572"></a><span class="lineno"> 2572</span><span class="comment">// container and the RHS container respectively.</span></div>
<div class="line"><a id="l02573" name="l02573"></a><span class="lineno"> 2573</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> TupleMatcher, <span class="keyword">typename</span> RhsContainer&gt;</div>
<div class="line"><a id="l02574" name="l02574"></a><span class="lineno"> 2574</span><span class="keyword">class </span>PointwiseMatcher {</div>
<div class="line"><a id="l02575" name="l02575"></a><span class="lineno"> 2575</span>  <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l02576" name="l02576"></a><span class="lineno"> 2576</span>      !IsHashTable&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(RhsContainer)&gt;::value,</div>
<div class="line"><a id="l02577" name="l02577"></a><span class="lineno"> 2577</span>      <span class="stringliteral">&quot;use UnorderedPointwise with hash tables&quot;</span>);</div>
<div class="line"><a id="l02578" name="l02578"></a><span class="lineno"> 2578</span> </div>
<div class="line"><a id="l02579" name="l02579"></a><span class="lineno"> 2579</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02580" name="l02580"></a><span class="lineno"> 2580</span>  <span class="keyword">typedef</span> internal::StlContainerView&lt;RhsContainer&gt; RhsView;</div>
<div class="line"><a id="l02581" name="l02581"></a><span class="lineno"> 2581</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RhsView::type RhsStlContainer;</div>
<div class="line"><a id="l02582" name="l02582"></a><span class="lineno"> 2582</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RhsStlContainer::value_type RhsValue;</div>
<div class="line"><a id="l02583" name="l02583"></a><span class="lineno"> 2583</span> </div>
<div class="line"><a id="l02584" name="l02584"></a><span class="lineno"> 2584</span>  <span class="keyword">static_assert</span>(!std::is_const&lt;RhsContainer&gt;::value,</div>
<div class="line"><a id="l02585" name="l02585"></a><span class="lineno"> 2585</span>                <span class="stringliteral">&quot;RhsContainer type must not be const&quot;</span>);</div>
<div class="line"><a id="l02586" name="l02586"></a><span class="lineno"> 2586</span>  <span class="keyword">static_assert</span>(!std::is_reference&lt;RhsContainer&gt;::value,</div>
<div class="line"><a id="l02587" name="l02587"></a><span class="lineno"> 2587</span>                <span class="stringliteral">&quot;RhsContainer type must not be a reference&quot;</span>);</div>
<div class="line"><a id="l02588" name="l02588"></a><span class="lineno"> 2588</span> </div>
<div class="line"><a id="l02589" name="l02589"></a><span class="lineno"> 2589</span>  <span class="comment">// Like ContainerEq, we make a copy of rhs in case the elements in</span></div>
<div class="line"><a id="l02590" name="l02590"></a><span class="lineno"> 2590</span>  <span class="comment">// it are modified after this matcher is created.</span></div>
<div class="line"><a id="l02591" name="l02591"></a><span class="lineno"> 2591</span>  PointwiseMatcher(<span class="keyword">const</span> TupleMatcher&amp; tuple_matcher, <span class="keyword">const</span> RhsContainer&amp; rhs)</div>
<div class="line"><a id="l02592" name="l02592"></a><span class="lineno"> 2592</span>      : tuple_matcher_(tuple_matcher), rhs_(RhsView::Copy(rhs)) {}</div>
<div class="line"><a id="l02593" name="l02593"></a><span class="lineno"> 2593</span> </div>
<div class="line"><a id="l02594" name="l02594"></a><span class="lineno"> 2594</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> LhsContainer&gt;</div>
<div class="line"><a id="l02595" name="l02595"></a><span class="lineno"> 2595</span>  <span class="keyword">operator</span> Matcher&lt;LhsContainer&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02596" name="l02596"></a><span class="lineno"> 2596</span>    <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l02597" name="l02597"></a><span class="lineno"> 2597</span>        !IsHashTable&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(LhsContainer)&gt;::value,</div>
<div class="line"><a id="l02598" name="l02598"></a><span class="lineno"> 2598</span>        <span class="stringliteral">&quot;use UnorderedPointwise with hash tables&quot;</span>);</div>
<div class="line"><a id="l02599" name="l02599"></a><span class="lineno"> 2599</span> </div>
<div class="line"><a id="l02600" name="l02600"></a><span class="lineno"> 2600</span>    <span class="keywordflow">return</span> Matcher&lt;LhsContainer&gt;(</div>
<div class="line"><a id="l02601" name="l02601"></a><span class="lineno"> 2601</span>        <span class="keyword">new</span> Impl&lt;const LhsContainer&amp;&gt;(tuple_matcher_, rhs_));</div>
<div class="line"><a id="l02602" name="l02602"></a><span class="lineno"> 2602</span>  }</div>
<div class="line"><a id="l02603" name="l02603"></a><span class="lineno"> 2603</span> </div>
<div class="line"><a id="l02604" name="l02604"></a><span class="lineno"> 2604</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> LhsContainer&gt;</div>
<div class="line"><a id="l02605" name="l02605"></a><span class="lineno"> 2605</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;LhsContainer&gt; {</div>
<div class="line"><a id="l02606" name="l02606"></a><span class="lineno"> 2606</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l02607" name="l02607"></a><span class="lineno"> 2607</span>    <span class="keyword">typedef</span> internal::StlContainerView&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(</div>
<div class="line"><a id="l02608" name="l02608"></a><span class="lineno"> 2608</span>        LhsContainer)&gt;</div>
<div class="line"><a id="l02609" name="l02609"></a><span class="lineno"> 2609</span>        LhsView;</div>
<div class="line"><a id="l02610" name="l02610"></a><span class="lineno"> 2610</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> LhsView::type LhsStlContainer;</div>
<div class="line"><a id="l02611" name="l02611"></a><span class="lineno"> 2611</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> LhsView::const_reference LhsStlContainerReference;</div>
<div class="line"><a id="l02612" name="l02612"></a><span class="lineno"> 2612</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> LhsStlContainer::value_type LhsValue;</div>
<div class="line"><a id="l02613" name="l02613"></a><span class="lineno"> 2613</span>    <span class="comment">// We pass the LHS value and the RHS value to the inner matcher by</span></div>
<div class="line"><a id="l02614" name="l02614"></a><span class="lineno"> 2614</span>    <span class="comment">// reference, as they may be expensive to copy.  We must use tuple</span></div>
<div class="line"><a id="l02615" name="l02615"></a><span class="lineno"> 2615</span>    <span class="comment">// instead of pair here, as a pair cannot hold references (C++ 98,</span></div>
<div class="line"><a id="l02616" name="l02616"></a><span class="lineno"> 2616</span>    <span class="comment">// 20.2.2 [lib.pairs]).</span></div>
<div class="line"><a id="l02617" name="l02617"></a><span class="lineno"> 2617</span>    typedef ::std::tuple&lt;const LhsValue&amp;, const RhsValue&amp;&gt; InnerMatcherArg;</div>
<div class="line"><a id="l02618" name="l02618"></a><span class="lineno"> 2618</span> </div>
<div class="line"><a id="l02619" name="l02619"></a><span class="lineno"> 2619</span>    Impl(<span class="keyword">const</span> TupleMatcher&amp; tuple_matcher, <span class="keyword">const</span> RhsStlContainer&amp; rhs)</div>
<div class="line"><a id="l02620" name="l02620"></a><span class="lineno"> 2620</span>        <span class="comment">// mono_tuple_matcher_ holds a monomorphic version of the tuple matcher.</span></div>
<div class="line"><a id="l02621" name="l02621"></a><span class="lineno"> 2621</span>        : mono_tuple_matcher_(SafeMatcherCast&lt;InnerMatcherArg&gt;(tuple_matcher)),</div>
<div class="line"><a id="l02622" name="l02622"></a><span class="lineno"> 2622</span>          rhs_(rhs) {}</div>
<div class="line"><a id="l02623" name="l02623"></a><span class="lineno"> 2623</span> </div>
<div class="line"><a id="l02624" name="l02624"></a><span class="lineno"> 2624</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02625" name="l02625"></a><span class="lineno"> 2625</span>      *os &lt;&lt; <span class="stringliteral">&quot;contains &quot;</span> &lt;&lt; rhs_.size()</div>
<div class="line"><a id="l02626" name="l02626"></a><span class="lineno"> 2626</span>          &lt;&lt; <span class="stringliteral">&quot; values, where each value and its corresponding value in &quot;</span>;</div>
<div class="line"><a id="l02627" name="l02627"></a><span class="lineno"> 2627</span>      UniversalPrinter&lt;RhsStlContainer&gt;::Print(rhs_, os);</div>
<div class="line"><a id="l02628" name="l02628"></a><span class="lineno"> 2628</span>      *os &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02629" name="l02629"></a><span class="lineno"> 2629</span>      mono_tuple_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02630" name="l02630"></a><span class="lineno"> 2630</span>    }</div>
<div class="line"><a id="l02631" name="l02631"></a><span class="lineno"> 2631</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02632" name="l02632"></a><span class="lineno"> 2632</span>      *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t contain exactly &quot;</span> &lt;&lt; rhs_.size()</div>
<div class="line"><a id="l02633" name="l02633"></a><span class="lineno"> 2633</span>          &lt;&lt; <span class="stringliteral">&quot; values, or contains a value x at some index i&quot;</span></div>
<div class="line"><a id="l02634" name="l02634"></a><span class="lineno"> 2634</span>          &lt;&lt; <span class="stringliteral">&quot; where x and the i-th value of &quot;</span>;</div>
<div class="line"><a id="l02635" name="l02635"></a><span class="lineno"> 2635</span>      UniversalPrint(rhs_, os);</div>
<div class="line"><a id="l02636" name="l02636"></a><span class="lineno"> 2636</span>      *os &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02637" name="l02637"></a><span class="lineno"> 2637</span>      mono_tuple_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02638" name="l02638"></a><span class="lineno"> 2638</span>    }</div>
<div class="line"><a id="l02639" name="l02639"></a><span class="lineno"> 2639</span> </div>
<div class="line"><a id="l02640" name="l02640"></a><span class="lineno"> 2640</span>    <span class="keywordtype">bool</span> MatchAndExplain(LhsContainer lhs,</div>
<div class="line"><a id="l02641" name="l02641"></a><span class="lineno"> 2641</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02642" name="l02642"></a><span class="lineno"> 2642</span>      LhsStlContainerReference lhs_stl_container = LhsView::ConstReference(lhs);</div>
<div class="line"><a id="l02643" name="l02643"></a><span class="lineno"> 2643</span>      <span class="keyword">const</span> <span class="keywordtype">size_t</span> actual_size = lhs_stl_container.size();</div>
<div class="line"><a id="l02644" name="l02644"></a><span class="lineno"> 2644</span>      <span class="keywordflow">if</span> (actual_size != rhs_.size()) {</div>
<div class="line"><a id="l02645" name="l02645"></a><span class="lineno"> 2645</span>        *listener &lt;&lt; <span class="stringliteral">&quot;which contains &quot;</span> &lt;&lt; actual_size &lt;&lt; <span class="stringliteral">&quot; values&quot;</span>;</div>
<div class="line"><a id="l02646" name="l02646"></a><span class="lineno"> 2646</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02647" name="l02647"></a><span class="lineno"> 2647</span>      }</div>
<div class="line"><a id="l02648" name="l02648"></a><span class="lineno"> 2648</span> </div>
<div class="line"><a id="l02649" name="l02649"></a><span class="lineno"> 2649</span>      <span class="keyword">auto</span> left = lhs_stl_container.begin();</div>
<div class="line"><a id="l02650" name="l02650"></a><span class="lineno"> 2650</span>      <span class="keyword">auto</span> right = rhs_.begin();</div>
<div class="line"><a id="l02651" name="l02651"></a><span class="lineno"> 2651</span>      <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i != actual_size; ++i, ++left, ++right) {</div>
<div class="line"><a id="l02652" name="l02652"></a><span class="lineno"> 2652</span>        <span class="keywordflow">if</span> (listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l02653" name="l02653"></a><span class="lineno"> 2653</span>          StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l02654" name="l02654"></a><span class="lineno"> 2654</span>          <span class="comment">// Create InnerMatcherArg as a temporarily object to avoid it outlives</span></div>
<div class="line"><a id="l02655" name="l02655"></a><span class="lineno"> 2655</span>          <span class="comment">// *left and *right. Dereference or the conversion to `const T&amp;` may</span></div>
<div class="line"><a id="l02656" name="l02656"></a><span class="lineno"> 2656</span>          <span class="comment">// return temp objects, e.g. for vector&lt;bool&gt;.</span></div>
<div class="line"><a id="l02657" name="l02657"></a><span class="lineno"> 2657</span>          <span class="keywordflow">if</span> (!mono_tuple_matcher_.MatchAndExplain(</div>
<div class="line"><a id="l02658" name="l02658"></a><span class="lineno"> 2658</span>                  InnerMatcherArg(ImplicitCast_&lt;const LhsValue&amp;&gt;(*left),</div>
<div class="line"><a id="l02659" name="l02659"></a><span class="lineno"> 2659</span>                                  ImplicitCast_&lt;const RhsValue&amp;&gt;(*right)),</div>
<div class="line"><a id="l02660" name="l02660"></a><span class="lineno"> 2660</span>                  &amp;inner_listener)) {</div>
<div class="line"><a id="l02661" name="l02661"></a><span class="lineno"> 2661</span>            *listener &lt;&lt; <span class="stringliteral">&quot;where the value pair (&quot;</span>;</div>
<div class="line"><a id="l02662" name="l02662"></a><span class="lineno"> 2662</span>            UniversalPrint(*left, listener-&gt;stream());</div>
<div class="line"><a id="l02663" name="l02663"></a><span class="lineno"> 2663</span>            *listener &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l02664" name="l02664"></a><span class="lineno"> 2664</span>            UniversalPrint(*right, listener-&gt;stream());</div>
<div class="line"><a id="l02665" name="l02665"></a><span class="lineno"> 2665</span>            *listener &lt;&lt; <span class="stringliteral">&quot;) at index #&quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot; don&#39;t match&quot;</span>;</div>
<div class="line"><a id="l02666" name="l02666"></a><span class="lineno"> 2666</span>            PrintIfNotEmpty(inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02667" name="l02667"></a><span class="lineno"> 2667</span>            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02668" name="l02668"></a><span class="lineno"> 2668</span>          }</div>
<div class="line"><a id="l02669" name="l02669"></a><span class="lineno"> 2669</span>        } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02670" name="l02670"></a><span class="lineno"> 2670</span>          <span class="keywordflow">if</span> (!mono_tuple_matcher_.Matches(</div>
<div class="line"><a id="l02671" name="l02671"></a><span class="lineno"> 2671</span>                  InnerMatcherArg(ImplicitCast_&lt;const LhsValue&amp;&gt;(*left),</div>
<div class="line"><a id="l02672" name="l02672"></a><span class="lineno"> 2672</span>                                  ImplicitCast_&lt;const RhsValue&amp;&gt;(*right))))</div>
<div class="line"><a id="l02673" name="l02673"></a><span class="lineno"> 2673</span>            <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02674" name="l02674"></a><span class="lineno"> 2674</span>        }</div>
<div class="line"><a id="l02675" name="l02675"></a><span class="lineno"> 2675</span>      }</div>
<div class="line"><a id="l02676" name="l02676"></a><span class="lineno"> 2676</span> </div>
<div class="line"><a id="l02677" name="l02677"></a><span class="lineno"> 2677</span>      <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l02678" name="l02678"></a><span class="lineno"> 2678</span>    }</div>
<div class="line"><a id="l02679" name="l02679"></a><span class="lineno"> 2679</span> </div>
<div class="line"><a id="l02680" name="l02680"></a><span class="lineno"> 2680</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l02681" name="l02681"></a><span class="lineno"> 2681</span>    <span class="keyword">const</span> Matcher&lt;InnerMatcherArg&gt; mono_tuple_matcher_;</div>
<div class="line"><a id="l02682" name="l02682"></a><span class="lineno"> 2682</span>    <span class="keyword">const</span> RhsStlContainer rhs_;</div>
<div class="line"><a id="l02683" name="l02683"></a><span class="lineno"> 2683</span>  };</div>
<div class="line"><a id="l02684" name="l02684"></a><span class="lineno"> 2684</span> </div>
<div class="line"><a id="l02685" name="l02685"></a><span class="lineno"> 2685</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02686" name="l02686"></a><span class="lineno"> 2686</span>  <span class="keyword">const</span> TupleMatcher tuple_matcher_;</div>
<div class="line"><a id="l02687" name="l02687"></a><span class="lineno"> 2687</span>  <span class="keyword">const</span> RhsStlContainer rhs_;</div>
<div class="line"><a id="l02688" name="l02688"></a><span class="lineno"> 2688</span>};</div>
<div class="line"><a id="l02689" name="l02689"></a><span class="lineno"> 2689</span> </div>
<div class="line"><a id="l02690" name="l02690"></a><span class="lineno"> 2690</span><span class="comment">// Holds the logic common to ContainsMatcherImpl and EachMatcherImpl.</span></div>
<div class="line"><a id="l02691" name="l02691"></a><span class="lineno"> 2691</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02692" name="l02692"></a><span class="lineno"> 2692</span><span class="keyword">class </span>QuantifierMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;Container&gt; {</div>
<div class="line"><a id="l02693" name="l02693"></a><span class="lineno"> 2693</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02694" name="l02694"></a><span class="lineno"> 2694</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;</div>
<div class="line"><a id="l02695" name="l02695"></a><span class="lineno"> 2695</span>  <span class="keyword">typedef</span> StlContainerView&lt;RawContainer&gt; View;</div>
<div class="line"><a id="l02696" name="l02696"></a><span class="lineno"> 2696</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::type StlContainer;</div>
<div class="line"><a id="l02697" name="l02697"></a><span class="lineno"> 2697</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::const_reference StlContainerReference;</div>
<div class="line"><a id="l02698" name="l02698"></a><span class="lineno"> 2698</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> StlContainer::value_type Element;</div>
<div class="line"><a id="l02699" name="l02699"></a><span class="lineno"> 2699</span> </div>
<div class="line"><a id="l02700" name="l02700"></a><span class="lineno"> 2700</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02701" name="l02701"></a><span class="lineno"> 2701</span>  <span class="keyword">explicit</span> QuantifierMatcherImpl(InnerMatcher inner_matcher)</div>
<div class="line"><a id="l02702" name="l02702"></a><span class="lineno"> 2702</span>      : inner_matcher_(</div>
<div class="line"><a id="l02703" name="l02703"></a><span class="lineno"> 2703</span>            testing::SafeMatcherCast&lt;const Element&amp;&gt;(inner_matcher)) {}</div>
<div class="line"><a id="l02704" name="l02704"></a><span class="lineno"> 2704</span> </div>
<div class="line"><a id="l02705" name="l02705"></a><span class="lineno"> 2705</span>  <span class="comment">// Checks whether:</span></div>
<div class="line"><a id="l02706" name="l02706"></a><span class="lineno"> 2706</span>  <span class="comment">// * All elements in the container match, if all_elements_should_match.</span></div>
<div class="line"><a id="l02707" name="l02707"></a><span class="lineno"> 2707</span>  <span class="comment">// * Any element in the container matches, if !all_elements_should_match.</span></div>
<div class="line"><a id="l02708" name="l02708"></a><span class="lineno"> 2708</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(<span class="keywordtype">bool</span> all_elements_should_match, Container container,</div>
<div class="line"><a id="l02709" name="l02709"></a><span class="lineno"> 2709</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02710" name="l02710"></a><span class="lineno"> 2710</span>    StlContainerReference stl_container = View::ConstReference(container);</div>
<div class="line"><a id="l02711" name="l02711"></a><span class="lineno"> 2711</span>    <span class="keywordtype">size_t</span> i = 0;</div>
<div class="line"><a id="l02712" name="l02712"></a><span class="lineno"> 2712</span>    <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = stl_container.begin(); it != stl_container.end();</div>
<div class="line"><a id="l02713" name="l02713"></a><span class="lineno"> 2713</span>         ++it, ++i) {</div>
<div class="line"><a id="l02714" name="l02714"></a><span class="lineno"> 2714</span>      StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l02715" name="l02715"></a><span class="lineno"> 2715</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> matches = inner_matcher_.MatchAndExplain(*it, &amp;inner_listener);</div>
<div class="line"><a id="l02716" name="l02716"></a><span class="lineno"> 2716</span> </div>
<div class="line"><a id="l02717" name="l02717"></a><span class="lineno"> 2717</span>      <span class="keywordflow">if</span> (matches != all_elements_should_match) {</div>
<div class="line"><a id="l02718" name="l02718"></a><span class="lineno"> 2718</span>        *listener &lt;&lt; <span class="stringliteral">&quot;whose element #&quot;</span> &lt;&lt; i</div>
<div class="line"><a id="l02719" name="l02719"></a><span class="lineno"> 2719</span>                  &lt;&lt; (matches ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l02720" name="l02720"></a><span class="lineno"> 2720</span>        PrintIfNotEmpty(inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02721" name="l02721"></a><span class="lineno"> 2721</span>        <span class="keywordflow">return</span> !all_elements_should_match;</div>
<div class="line"><a id="l02722" name="l02722"></a><span class="lineno"> 2722</span>      }</div>
<div class="line"><a id="l02723" name="l02723"></a><span class="lineno"> 2723</span>    }</div>
<div class="line"><a id="l02724" name="l02724"></a><span class="lineno"> 2724</span>    <span class="keywordflow">return</span> all_elements_should_match;</div>
<div class="line"><a id="l02725" name="l02725"></a><span class="lineno"> 2725</span>  }</div>
<div class="line"><a id="l02726" name="l02726"></a><span class="lineno"> 2726</span> </div>
<div class="line"><a id="l02727" name="l02727"></a><span class="lineno"> 2727</span>  <span class="keywordtype">bool</span> MatchAndExplainImpl(<span class="keyword">const</span> Matcher&lt;size_t&gt;&amp; count_matcher,</div>
<div class="line"><a id="l02728" name="l02728"></a><span class="lineno"> 2728</span>                           Container container,</div>
<div class="line"><a id="l02729" name="l02729"></a><span class="lineno"> 2729</span>                           MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02730" name="l02730"></a><span class="lineno"> 2730</span>    StlContainerReference stl_container = View::ConstReference(container);</div>
<div class="line"><a id="l02731" name="l02731"></a><span class="lineno"> 2731</span>    <span class="keywordtype">size_t</span> i = 0;</div>
<div class="line"><a id="l02732" name="l02732"></a><span class="lineno"> 2732</span>    std::vector&lt;size_t&gt; match_elements;</div>
<div class="line"><a id="l02733" name="l02733"></a><span class="lineno"> 2733</span>    <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = stl_container.begin(); it != stl_container.end();</div>
<div class="line"><a id="l02734" name="l02734"></a><span class="lineno"> 2734</span>         ++it, ++i) {</div>
<div class="line"><a id="l02735" name="l02735"></a><span class="lineno"> 2735</span>      StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l02736" name="l02736"></a><span class="lineno"> 2736</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> matches = inner_matcher_.MatchAndExplain(*it, &amp;inner_listener);</div>
<div class="line"><a id="l02737" name="l02737"></a><span class="lineno"> 2737</span>      <span class="keywordflow">if</span> (matches) {</div>
<div class="line"><a id="l02738" name="l02738"></a><span class="lineno"> 2738</span>        match_elements.push_back(i);</div>
<div class="line"><a id="l02739" name="l02739"></a><span class="lineno"> 2739</span>      }</div>
<div class="line"><a id="l02740" name="l02740"></a><span class="lineno"> 2740</span>    }</div>
<div class="line"><a id="l02741" name="l02741"></a><span class="lineno"> 2741</span>    <span class="keywordflow">if</span> (listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l02742" name="l02742"></a><span class="lineno"> 2742</span>      <span class="keywordflow">if</span> (match_elements.empty()) {</div>
<div class="line"><a id="l02743" name="l02743"></a><span class="lineno"> 2743</span>        *listener &lt;&lt; <span class="stringliteral">&quot;has no element that matches&quot;</span>;</div>
<div class="line"><a id="l02744" name="l02744"></a><span class="lineno"> 2744</span>      } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (match_elements.size() == 1) {</div>
<div class="line"><a id="l02745" name="l02745"></a><span class="lineno"> 2745</span>        *listener &lt;&lt; <span class="stringliteral">&quot;whose element #&quot;</span> &lt;&lt; match_elements[0] &lt;&lt; <span class="stringliteral">&quot; matches&quot;</span>;</div>
<div class="line"><a id="l02746" name="l02746"></a><span class="lineno"> 2746</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02747" name="l02747"></a><span class="lineno"> 2747</span>        *listener &lt;&lt; <span class="stringliteral">&quot;whose elements (&quot;</span>;</div>
<div class="line"><a id="l02748" name="l02748"></a><span class="lineno"> 2748</span>        std::string sep = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l02749" name="l02749"></a><span class="lineno"> 2749</span>        <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> e : match_elements) {</div>
<div class="line"><a id="l02750" name="l02750"></a><span class="lineno"> 2750</span>          *listener &lt;&lt; sep &lt;&lt; e;</div>
<div class="line"><a id="l02751" name="l02751"></a><span class="lineno"> 2751</span>          sep = <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l02752" name="l02752"></a><span class="lineno"> 2752</span>        }</div>
<div class="line"><a id="l02753" name="l02753"></a><span class="lineno"> 2753</span>        *listener &lt;&lt; <span class="stringliteral">&quot;) match&quot;</span>;</div>
<div class="line"><a id="l02754" name="l02754"></a><span class="lineno"> 2754</span>      }</div>
<div class="line"><a id="l02755" name="l02755"></a><span class="lineno"> 2755</span>    }</div>
<div class="line"><a id="l02756" name="l02756"></a><span class="lineno"> 2756</span>    StringMatchResultListener count_listener;</div>
<div class="line"><a id="l02757" name="l02757"></a><span class="lineno"> 2757</span>    <span class="keywordflow">if</span> (count_matcher.MatchAndExplain(match_elements.size(), &amp;count_listener)) {</div>
<div class="line"><a id="l02758" name="l02758"></a><span class="lineno"> 2758</span>      *listener &lt;&lt; <span class="stringliteral">&quot; and whose match quantity of &quot;</span> &lt;&lt; match_elements.size()</div>
<div class="line"><a id="l02759" name="l02759"></a><span class="lineno"> 2759</span>                &lt;&lt; <span class="stringliteral">&quot; matches&quot;</span>;</div>
<div class="line"><a id="l02760" name="l02760"></a><span class="lineno"> 2760</span>      PrintIfNotEmpty(count_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02761" name="l02761"></a><span class="lineno"> 2761</span>      <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l02762" name="l02762"></a><span class="lineno"> 2762</span>    } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02763" name="l02763"></a><span class="lineno"> 2763</span>      <span class="keywordflow">if</span> (match_elements.empty()) {</div>
<div class="line"><a id="l02764" name="l02764"></a><span class="lineno"> 2764</span>        *listener &lt;&lt; <span class="stringliteral">&quot; and&quot;</span>;</div>
<div class="line"><a id="l02765" name="l02765"></a><span class="lineno"> 2765</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l02766" name="l02766"></a><span class="lineno"> 2766</span>        *listener &lt;&lt; <span class="stringliteral">&quot; but&quot;</span>;</div>
<div class="line"><a id="l02767" name="l02767"></a><span class="lineno"> 2767</span>      }</div>
<div class="line"><a id="l02768" name="l02768"></a><span class="lineno"> 2768</span>      *listener &lt;&lt; <span class="stringliteral">&quot; whose match quantity of &quot;</span> &lt;&lt; match_elements.size()</div>
<div class="line"><a id="l02769" name="l02769"></a><span class="lineno"> 2769</span>                &lt;&lt; <span class="stringliteral">&quot; does not match&quot;</span>;</div>
<div class="line"><a id="l02770" name="l02770"></a><span class="lineno"> 2770</span>      PrintIfNotEmpty(count_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l02771" name="l02771"></a><span class="lineno"> 2771</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l02772" name="l02772"></a><span class="lineno"> 2772</span>    }</div>
<div class="line"><a id="l02773" name="l02773"></a><span class="lineno"> 2773</span>  }</div>
<div class="line"><a id="l02774" name="l02774"></a><span class="lineno"> 2774</span> </div>
<div class="line"><a id="l02775" name="l02775"></a><span class="lineno"> 2775</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l02776" name="l02776"></a><span class="lineno"> 2776</span>  <span class="keyword">const</span> Matcher&lt;const Element&amp;&gt; inner_matcher_;</div>
<div class="line"><a id="l02777" name="l02777"></a><span class="lineno"> 2777</span>};</div>
<div class="line"><a id="l02778" name="l02778"></a><span class="lineno"> 2778</span> </div>
<div class="line"><a id="l02779" name="l02779"></a><span class="lineno"> 2779</span><span class="comment">// Implements Contains(element_matcher) for the given argument type Container.</span></div>
<div class="line"><a id="l02780" name="l02780"></a><span class="lineno"> 2780</span><span class="comment">// Symmetric to EachMatcherImpl.</span></div>
<div class="line"><a id="l02781" name="l02781"></a><span class="lineno"> 2781</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02782" name="l02782"></a><span class="lineno"> 2782</span><span class="keyword">class </span>ContainsMatcherImpl : <span class="keyword">public</span> QuantifierMatcherImpl&lt;Container&gt; {</div>
<div class="line"><a id="l02783" name="l02783"></a><span class="lineno"> 2783</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02784" name="l02784"></a><span class="lineno"> 2784</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02785" name="l02785"></a><span class="lineno"> 2785</span>  <span class="keyword">explicit</span> ContainsMatcherImpl(InnerMatcher inner_matcher)</div>
<div class="line"><a id="l02786" name="l02786"></a><span class="lineno"> 2786</span>      : QuantifierMatcherImpl&lt;Container&gt;(inner_matcher) {}</div>
<div class="line"><a id="l02787" name="l02787"></a><span class="lineno"> 2787</span> </div>
<div class="line"><a id="l02788" name="l02788"></a><span class="lineno"> 2788</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l02789" name="l02789"></a><span class="lineno"> 2789</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02790" name="l02790"></a><span class="lineno"> 2790</span>    *os &lt;&lt; <span class="stringliteral">&quot;contains at least one element that &quot;</span>;</div>
<div class="line"><a id="l02791" name="l02791"></a><span class="lineno"> 2791</span>    this-&gt;inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02792" name="l02792"></a><span class="lineno"> 2792</span>  }</div>
<div class="line"><a id="l02793" name="l02793"></a><span class="lineno"> 2793</span> </div>
<div class="line"><a id="l02794" name="l02794"></a><span class="lineno"> 2794</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02795" name="l02795"></a><span class="lineno"> 2795</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t contain any element that &quot;</span>;</div>
<div class="line"><a id="l02796" name="l02796"></a><span class="lineno"> 2796</span>    this-&gt;inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02797" name="l02797"></a><span class="lineno"> 2797</span>  }</div>
<div class="line"><a id="l02798" name="l02798"></a><span class="lineno"> 2798</span> </div>
<div class="line"><a id="l02799" name="l02799"></a><span class="lineno"> 2799</span>  <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l02800" name="l02800"></a><span class="lineno"> 2800</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02801" name="l02801"></a><span class="lineno"> 2801</span>    <span class="keywordflow">return</span> this-&gt;MatchAndExplainImpl(<span class="keyword">false</span>, container, listener);</div>
<div class="line"><a id="l02802" name="l02802"></a><span class="lineno"> 2802</span>  }</div>
<div class="line"><a id="l02803" name="l02803"></a><span class="lineno"> 2803</span>};</div>
<div class="line"><a id="l02804" name="l02804"></a><span class="lineno"> 2804</span> </div>
<div class="line"><a id="l02805" name="l02805"></a><span class="lineno"> 2805</span><span class="comment">// Implements Each(element_matcher) for the given argument type Container.</span></div>
<div class="line"><a id="l02806" name="l02806"></a><span class="lineno"> 2806</span><span class="comment">// Symmetric to ContainsMatcherImpl.</span></div>
<div class="line"><a id="l02807" name="l02807"></a><span class="lineno"> 2807</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02808" name="l02808"></a><span class="lineno"> 2808</span><span class="keyword">class </span>EachMatcherImpl : <span class="keyword">public</span> QuantifierMatcherImpl&lt;Container&gt; {</div>
<div class="line"><a id="l02809" name="l02809"></a><span class="lineno"> 2809</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02810" name="l02810"></a><span class="lineno"> 2810</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02811" name="l02811"></a><span class="lineno"> 2811</span>  <span class="keyword">explicit</span> EachMatcherImpl(InnerMatcher inner_matcher)</div>
<div class="line"><a id="l02812" name="l02812"></a><span class="lineno"> 2812</span>      : QuantifierMatcherImpl&lt;Container&gt;(inner_matcher) {}</div>
<div class="line"><a id="l02813" name="l02813"></a><span class="lineno"> 2813</span> </div>
<div class="line"><a id="l02814" name="l02814"></a><span class="lineno"> 2814</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l02815" name="l02815"></a><span class="lineno"> 2815</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02816" name="l02816"></a><span class="lineno"> 2816</span>    *os &lt;&lt; <span class="stringliteral">&quot;only contains elements that &quot;</span>;</div>
<div class="line"><a id="l02817" name="l02817"></a><span class="lineno"> 2817</span>    this-&gt;inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02818" name="l02818"></a><span class="lineno"> 2818</span>  }</div>
<div class="line"><a id="l02819" name="l02819"></a><span class="lineno"> 2819</span> </div>
<div class="line"><a id="l02820" name="l02820"></a><span class="lineno"> 2820</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02821" name="l02821"></a><span class="lineno"> 2821</span>    *os &lt;&lt; <span class="stringliteral">&quot;contains some element that &quot;</span>;</div>
<div class="line"><a id="l02822" name="l02822"></a><span class="lineno"> 2822</span>    this-&gt;inner_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02823" name="l02823"></a><span class="lineno"> 2823</span>  }</div>
<div class="line"><a id="l02824" name="l02824"></a><span class="lineno"> 2824</span> </div>
<div class="line"><a id="l02825" name="l02825"></a><span class="lineno"> 2825</span>  <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l02826" name="l02826"></a><span class="lineno"> 2826</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02827" name="l02827"></a><span class="lineno"> 2827</span>    <span class="keywordflow">return</span> this-&gt;MatchAndExplainImpl(<span class="keyword">true</span>, container, listener);</div>
<div class="line"><a id="l02828" name="l02828"></a><span class="lineno"> 2828</span>  }</div>
<div class="line"><a id="l02829" name="l02829"></a><span class="lineno"> 2829</span>};</div>
<div class="line"><a id="l02830" name="l02830"></a><span class="lineno"> 2830</span> </div>
<div class="line"><a id="l02831" name="l02831"></a><span class="lineno"> 2831</span><span class="comment">// Implements Contains(element_matcher).Times(n) for the given argument type</span></div>
<div class="line"><a id="l02832" name="l02832"></a><span class="lineno"> 2832</span><span class="comment">// Container.</span></div>
<div class="line"><a id="l02833" name="l02833"></a><span class="lineno"> 2833</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02834" name="l02834"></a><span class="lineno"> 2834</span><span class="keyword">class </span>ContainsTimesMatcherImpl : <span class="keyword">public</span> QuantifierMatcherImpl&lt;Container&gt; {</div>
<div class="line"><a id="l02835" name="l02835"></a><span class="lineno"> 2835</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02836" name="l02836"></a><span class="lineno"> 2836</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02837" name="l02837"></a><span class="lineno"> 2837</span>  <span class="keyword">explicit</span> ContainsTimesMatcherImpl(InnerMatcher inner_matcher,</div>
<div class="line"><a id="l02838" name="l02838"></a><span class="lineno"> 2838</span>                                    Matcher&lt;size_t&gt; count_matcher)</div>
<div class="line"><a id="l02839" name="l02839"></a><span class="lineno"> 2839</span>      : QuantifierMatcherImpl&lt;Container&gt;(inner_matcher),</div>
<div class="line"><a id="l02840" name="l02840"></a><span class="lineno"> 2840</span>        count_matcher_(std::move(count_matcher)) {}</div>
<div class="line"><a id="l02841" name="l02841"></a><span class="lineno"> 2841</span> </div>
<div class="line"><a id="l02842" name="l02842"></a><span class="lineno"> 2842</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02843" name="l02843"></a><span class="lineno"> 2843</span>    *os &lt;&lt; <span class="stringliteral">&quot;quantity of elements that match &quot;</span>;</div>
<div class="line"><a id="l02844" name="l02844"></a><span class="lineno"> 2844</span>    this-&gt;inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02845" name="l02845"></a><span class="lineno"> 2845</span>    *os &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02846" name="l02846"></a><span class="lineno"> 2846</span>    count_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02847" name="l02847"></a><span class="lineno"> 2847</span>  }</div>
<div class="line"><a id="l02848" name="l02848"></a><span class="lineno"> 2848</span> </div>
<div class="line"><a id="l02849" name="l02849"></a><span class="lineno"> 2849</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02850" name="l02850"></a><span class="lineno"> 2850</span>    *os &lt;&lt; <span class="stringliteral">&quot;quantity of elements that match &quot;</span>;</div>
<div class="line"><a id="l02851" name="l02851"></a><span class="lineno"> 2851</span>    this-&gt;inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02852" name="l02852"></a><span class="lineno"> 2852</span>    *os &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l02853" name="l02853"></a><span class="lineno"> 2853</span>    count_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l02854" name="l02854"></a><span class="lineno"> 2854</span>  }</div>
<div class="line"><a id="l02855" name="l02855"></a><span class="lineno"> 2855</span> </div>
<div class="line"><a id="l02856" name="l02856"></a><span class="lineno"> 2856</span>  <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l02857" name="l02857"></a><span class="lineno"> 2857</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02858" name="l02858"></a><span class="lineno"> 2858</span>    <span class="keywordflow">return</span> this-&gt;MatchAndExplainImpl(count_matcher_, container, listener);</div>
<div class="line"><a id="l02859" name="l02859"></a><span class="lineno"> 2859</span>  }</div>
<div class="line"><a id="l02860" name="l02860"></a><span class="lineno"> 2860</span> </div>
<div class="line"><a id="l02861" name="l02861"></a><span class="lineno"> 2861</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02862" name="l02862"></a><span class="lineno"> 2862</span>  <span class="keyword">const</span> Matcher&lt;size_t&gt; count_matcher_;</div>
<div class="line"><a id="l02863" name="l02863"></a><span class="lineno"> 2863</span>};</div>
<div class="line"><a id="l02864" name="l02864"></a><span class="lineno"> 2864</span> </div>
<div class="line"><a id="l02865" name="l02865"></a><span class="lineno"> 2865</span><span class="comment">// Implements polymorphic Contains(element_matcher).Times(n).</span></div>
<div class="line"><a id="l02866" name="l02866"></a><span class="lineno"> 2866</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l02867" name="l02867"></a><span class="lineno"> 2867</span><span class="keyword">class </span>ContainsTimesMatcher {</div>
<div class="line"><a id="l02868" name="l02868"></a><span class="lineno"> 2868</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02869" name="l02869"></a><span class="lineno"> 2869</span>  <span class="keyword">explicit</span> ContainsTimesMatcher(M m, Matcher&lt;size_t&gt; count_matcher)</div>
<div class="line"><a id="l02870" name="l02870"></a><span class="lineno"> 2870</span>      : inner_matcher_(m), count_matcher_(std::move(count_matcher)) {}</div>
<div class="line"><a id="l02871" name="l02871"></a><span class="lineno"> 2871</span> </div>
<div class="line"><a id="l02872" name="l02872"></a><span class="lineno"> 2872</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02873" name="l02873"></a><span class="lineno"> 2873</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02874" name="l02874"></a><span class="lineno"> 2874</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(<span class="keyword">new</span> ContainsTimesMatcherImpl&lt;const Container&amp;&gt;(</div>
<div class="line"><a id="l02875" name="l02875"></a><span class="lineno"> 2875</span>        inner_matcher_, count_matcher_));</div>
<div class="line"><a id="l02876" name="l02876"></a><span class="lineno"> 2876</span>  }</div>
<div class="line"><a id="l02877" name="l02877"></a><span class="lineno"> 2877</span> </div>
<div class="line"><a id="l02878" name="l02878"></a><span class="lineno"> 2878</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02879" name="l02879"></a><span class="lineno"> 2879</span>  <span class="keyword">const</span> M inner_matcher_;</div>
<div class="line"><a id="l02880" name="l02880"></a><span class="lineno"> 2880</span>  <span class="keyword">const</span> Matcher&lt;size_t&gt; count_matcher_;</div>
<div class="line"><a id="l02881" name="l02881"></a><span class="lineno"> 2881</span>};</div>
<div class="line"><a id="l02882" name="l02882"></a><span class="lineno"> 2882</span> </div>
<div class="line"><a id="l02883" name="l02883"></a><span class="lineno"> 2883</span><span class="comment">// Implements polymorphic Contains(element_matcher).</span></div>
<div class="line"><a id="l02884" name="l02884"></a><span class="lineno"> 2884</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l02885" name="l02885"></a><span class="lineno"> 2885</span><span class="keyword">class </span>ContainsMatcher {</div>
<div class="line"><a id="l02886" name="l02886"></a><span class="lineno"> 2886</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02887" name="l02887"></a><span class="lineno"> 2887</span>  <span class="keyword">explicit</span> ContainsMatcher(M m) : inner_matcher_(m) {}</div>
<div class="line"><a id="l02888" name="l02888"></a><span class="lineno"> 2888</span> </div>
<div class="line"><a id="l02889" name="l02889"></a><span class="lineno"> 2889</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02890" name="l02890"></a><span class="lineno"> 2890</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02891" name="l02891"></a><span class="lineno"> 2891</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(</div>
<div class="line"><a id="l02892" name="l02892"></a><span class="lineno"> 2892</span>        <span class="keyword">new</span> ContainsMatcherImpl&lt;const Container&amp;&gt;(inner_matcher_));</div>
<div class="line"><a id="l02893" name="l02893"></a><span class="lineno"> 2893</span>  }</div>
<div class="line"><a id="l02894" name="l02894"></a><span class="lineno"> 2894</span> </div>
<div class="line"><a id="l02895" name="l02895"></a><span class="lineno"> 2895</span>  ContainsTimesMatcher&lt;M&gt; Times(Matcher&lt;size_t&gt; count_matcher)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02896" name="l02896"></a><span class="lineno"> 2896</span>    <span class="keywordflow">return</span> ContainsTimesMatcher&lt;M&gt;(inner_matcher_, std::move(count_matcher));</div>
<div class="line"><a id="l02897" name="l02897"></a><span class="lineno"> 2897</span>  }</div>
<div class="line"><a id="l02898" name="l02898"></a><span class="lineno"> 2898</span> </div>
<div class="line"><a id="l02899" name="l02899"></a><span class="lineno"> 2899</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02900" name="l02900"></a><span class="lineno"> 2900</span>  <span class="keyword">const</span> M inner_matcher_;</div>
<div class="line"><a id="l02901" name="l02901"></a><span class="lineno"> 2901</span>};</div>
<div class="line"><a id="l02902" name="l02902"></a><span class="lineno"> 2902</span> </div>
<div class="line"><a id="l02903" name="l02903"></a><span class="lineno"> 2903</span><span class="comment">// Implements polymorphic Each(element_matcher).</span></div>
<div class="line"><a id="l02904" name="l02904"></a><span class="lineno"> 2904</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l02905" name="l02905"></a><span class="lineno"> 2905</span><span class="keyword">class </span>EachMatcher {</div>
<div class="line"><a id="l02906" name="l02906"></a><span class="lineno"> 2906</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02907" name="l02907"></a><span class="lineno"> 2907</span>  <span class="keyword">explicit</span> EachMatcher(M m) : inner_matcher_(m) {}</div>
<div class="line"><a id="l02908" name="l02908"></a><span class="lineno"> 2908</span> </div>
<div class="line"><a id="l02909" name="l02909"></a><span class="lineno"> 2909</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l02910" name="l02910"></a><span class="lineno"> 2910</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02911" name="l02911"></a><span class="lineno"> 2911</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(</div>
<div class="line"><a id="l02912" name="l02912"></a><span class="lineno"> 2912</span>        <span class="keyword">new</span> EachMatcherImpl&lt;const Container&amp;&gt;(inner_matcher_));</div>
<div class="line"><a id="l02913" name="l02913"></a><span class="lineno"> 2913</span>  }</div>
<div class="line"><a id="l02914" name="l02914"></a><span class="lineno"> 2914</span> </div>
<div class="line"><a id="l02915" name="l02915"></a><span class="lineno"> 2915</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02916" name="l02916"></a><span class="lineno"> 2916</span>  <span class="keyword">const</span> M inner_matcher_;</div>
<div class="line"><a id="l02917" name="l02917"></a><span class="lineno"> 2917</span>};</div>
<div class="line"><a id="l02918" name="l02918"></a><span class="lineno"> 2918</span> </div>
<div class="line"><a id="l02919" name="l02919"></a><span class="lineno"> 2919</span><span class="keyword">struct </span>Rank1 {};</div>
<div class="line"><a id="l02920" name="l02920"></a><span class="lineno"> 2920</span><span class="keyword">struct </span>Rank0 : Rank1 {};</div>
<div class="line"><a id="l02921" name="l02921"></a><span class="lineno"> 2921</span> </div>
<div class="line"><a id="l02922" name="l02922"></a><span class="lineno"> 2922</span><span class="keyword">namespace </span>pair_getters {</div>
<div class="line"><a id="l02923" name="l02923"></a><span class="lineno"> 2923</span><span class="keyword">using </span>std::get;</div>
<div class="line"><a id="l02924" name="l02924"></a><span class="lineno"> 2924</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02925" name="l02925"></a><span class="lineno"> 2925</span><span class="keyword">auto</span> First(T&amp; x, Rank1) -&gt; <span class="keyword">decltype</span>(get&lt;0&gt;(x)) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02926" name="l02926"></a><span class="lineno"> 2926</span>  <span class="keywordflow">return</span> get&lt;0&gt;(x);</div>
<div class="line"><a id="l02927" name="l02927"></a><span class="lineno"> 2927</span>}</div>
<div class="line"><a id="l02928" name="l02928"></a><span class="lineno"> 2928</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02929" name="l02929"></a><span class="lineno"> 2929</span><span class="keyword">auto</span> First(T&amp; x, Rank0) -&gt; <span class="keyword">decltype</span>((x.first)) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02930" name="l02930"></a><span class="lineno"> 2930</span>  <span class="keywordflow">return</span> x.first;</div>
<div class="line"><a id="l02931" name="l02931"></a><span class="lineno"> 2931</span>}</div>
<div class="line"><a id="l02932" name="l02932"></a><span class="lineno"> 2932</span> </div>
<div class="line"><a id="l02933" name="l02933"></a><span class="lineno"> 2933</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02934" name="l02934"></a><span class="lineno"> 2934</span><span class="keyword">auto</span> Second(T&amp; x, Rank1) -&gt; <span class="keyword">decltype</span>(get&lt;1&gt;(x)) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02935" name="l02935"></a><span class="lineno"> 2935</span>  <span class="keywordflow">return</span> get&lt;1&gt;(x);</div>
<div class="line"><a id="l02936" name="l02936"></a><span class="lineno"> 2936</span>}</div>
<div class="line"><a id="l02937" name="l02937"></a><span class="lineno"> 2937</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l02938" name="l02938"></a><span class="lineno"> 2938</span><span class="keyword">auto</span> Second(T&amp; x, Rank0) -&gt; <span class="keyword">decltype</span>((x.second)) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l02939" name="l02939"></a><span class="lineno"> 2939</span>  <span class="keywordflow">return</span> x.second;</div>
<div class="line"><a id="l02940" name="l02940"></a><span class="lineno"> 2940</span>}</div>
<div class="line"><a id="l02941" name="l02941"></a><span class="lineno"> 2941</span>}  <span class="comment">// namespace pair_getters</span></div>
<div class="line"><a id="l02942" name="l02942"></a><span class="lineno"> 2942</span> </div>
<div class="line"><a id="l02943" name="l02943"></a><span class="lineno"> 2943</span><span class="comment">// Implements Key(inner_matcher) for the given argument pair type.</span></div>
<div class="line"><a id="l02944" name="l02944"></a><span class="lineno"> 2944</span><span class="comment">// Key(inner_matcher) matches an std::pair whose &#39;first&#39; field matches</span></div>
<div class="line"><a id="l02945" name="l02945"></a><span class="lineno"> 2945</span><span class="comment">// inner_matcher.  For example, Contains(Key(Ge(5))) can be used to match an</span></div>
<div class="line"><a id="l02946" name="l02946"></a><span class="lineno"> 2946</span><span class="comment">// std::map that contains at least one element whose key is &gt;= 5.</span></div>
<div class="line"><a id="l02947" name="l02947"></a><span class="lineno"> 2947</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> PairType&gt;</div>
<div class="line"><a id="l02948" name="l02948"></a><span class="lineno"> 2948</span><span class="keyword">class </span>KeyMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;PairType&gt; {</div>
<div class="line"><a id="l02949" name="l02949"></a><span class="lineno"> 2949</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02950" name="l02950"></a><span class="lineno"> 2950</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType;</div>
<div class="line"><a id="l02951" name="l02951"></a><span class="lineno"> 2951</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RawPairType::first_type KeyType;</div>
<div class="line"><a id="l02952" name="l02952"></a><span class="lineno"> 2952</span> </div>
<div class="line"><a id="l02953" name="l02953"></a><span class="lineno"> 2953</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l02954" name="l02954"></a><span class="lineno"> 2954</span>  <span class="keyword">explicit</span> KeyMatcherImpl(InnerMatcher inner_matcher)</div>
<div class="line"><a id="l02955" name="l02955"></a><span class="lineno"> 2955</span>      : inner_matcher_(</div>
<div class="line"><a id="l02956" name="l02956"></a><span class="lineno"> 2956</span>            testing::SafeMatcherCast&lt;const KeyType&amp;&gt;(inner_matcher)) {}</div>
<div class="line"><a id="l02957" name="l02957"></a><span class="lineno"> 2957</span> </div>
<div class="line"><a id="l02958" name="l02958"></a><span class="lineno"> 2958</span>  <span class="comment">// Returns true if and only if &#39;key_value.first&#39; (the key) matches the inner</span></div>
<div class="line"><a id="l02959" name="l02959"></a><span class="lineno"> 2959</span>  <span class="comment">// matcher.</span></div>
<div class="line"><a id="l02960" name="l02960"></a><span class="lineno"> 2960</span>  <span class="keywordtype">bool</span> MatchAndExplain(PairType key_value,</div>
<div class="line"><a id="l02961" name="l02961"></a><span class="lineno"> 2961</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02962" name="l02962"></a><span class="lineno"> 2962</span>    StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l02963" name="l02963"></a><span class="lineno"> 2963</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> match = inner_matcher_.MatchAndExplain(</div>
<div class="line"><a id="l02964" name="l02964"></a><span class="lineno"> 2964</span>        pair_getters::First(key_value, Rank0()), &amp;inner_listener);</div>
<div class="line"><a id="l02965" name="l02965"></a><span class="lineno"> 2965</span>    <span class="keyword">const</span> std::string explanation = inner_listener.str();</div>
<div class="line"><a id="l02966" name="l02966"></a><span class="lineno"> 2966</span>    <span class="keywordflow">if</span> (explanation != <span class="stringliteral">&quot;&quot;</span>) {</div>
<div class="line"><a id="l02967" name="l02967"></a><span class="lineno"> 2967</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose first field is a value &quot;</span> &lt;&lt; explanation;</div>
<div class="line"><a id="l02968" name="l02968"></a><span class="lineno"> 2968</span>    }</div>
<div class="line"><a id="l02969" name="l02969"></a><span class="lineno"> 2969</span>    <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l02970" name="l02970"></a><span class="lineno"> 2970</span>  }</div>
<div class="line"><a id="l02971" name="l02971"></a><span class="lineno"> 2971</span> </div>
<div class="line"><a id="l02972" name="l02972"></a><span class="lineno"> 2972</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l02973" name="l02973"></a><span class="lineno"> 2973</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02974" name="l02974"></a><span class="lineno"> 2974</span>    *os &lt;&lt; <span class="stringliteral">&quot;has a key that &quot;</span>;</div>
<div class="line"><a id="l02975" name="l02975"></a><span class="lineno"> 2975</span>    inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02976" name="l02976"></a><span class="lineno"> 2976</span>  }</div>
<div class="line"><a id="l02977" name="l02977"></a><span class="lineno"> 2977</span> </div>
<div class="line"><a id="l02978" name="l02978"></a><span class="lineno"> 2978</span>  <span class="comment">// Describes what the negation of this matcher does.</span></div>
<div class="line"><a id="l02979" name="l02979"></a><span class="lineno"> 2979</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l02980" name="l02980"></a><span class="lineno"> 2980</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t have a key that &quot;</span>;</div>
<div class="line"><a id="l02981" name="l02981"></a><span class="lineno"> 2981</span>    inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l02982" name="l02982"></a><span class="lineno"> 2982</span>  }</div>
<div class="line"><a id="l02983" name="l02983"></a><span class="lineno"> 2983</span> </div>
<div class="line"><a id="l02984" name="l02984"></a><span class="lineno"> 2984</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l02985" name="l02985"></a><span class="lineno"> 2985</span>  <span class="keyword">const</span> Matcher&lt;const KeyType&amp;&gt; inner_matcher_;</div>
<div class="line"><a id="l02986" name="l02986"></a><span class="lineno"> 2986</span>};</div>
<div class="line"><a id="l02987" name="l02987"></a><span class="lineno"> 2987</span> </div>
<div class="line"><a id="l02988" name="l02988"></a><span class="lineno"> 2988</span><span class="comment">// Implements polymorphic Key(matcher_for_key).</span></div>
<div class="line"><a id="l02989" name="l02989"></a><span class="lineno"> 2989</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l02990" name="l02990"></a><span class="lineno"> 2990</span><span class="keyword">class </span>KeyMatcher {</div>
<div class="line"><a id="l02991" name="l02991"></a><span class="lineno"> 2991</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l02992" name="l02992"></a><span class="lineno"> 2992</span>  <span class="keyword">explicit</span> KeyMatcher(M m) : matcher_for_key_(m) {}</div>
<div class="line"><a id="l02993" name="l02993"></a><span class="lineno"> 2993</span> </div>
<div class="line"><a id="l02994" name="l02994"></a><span class="lineno"> 2994</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> PairType&gt;</div>
<div class="line"><a id="l02995" name="l02995"></a><span class="lineno"> 2995</span>  <span class="keyword">operator</span> Matcher&lt;PairType&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l02996" name="l02996"></a><span class="lineno"> 2996</span>    <span class="keywordflow">return</span> Matcher&lt;PairType&gt;(</div>
<div class="line"><a id="l02997" name="l02997"></a><span class="lineno"> 2997</span>        <span class="keyword">new</span> KeyMatcherImpl&lt;const PairType&amp;&gt;(matcher_for_key_));</div>
<div class="line"><a id="l02998" name="l02998"></a><span class="lineno"> 2998</span>  }</div>
<div class="line"><a id="l02999" name="l02999"></a><span class="lineno"> 2999</span> </div>
<div class="line"><a id="l03000" name="l03000"></a><span class="lineno"> 3000</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03001" name="l03001"></a><span class="lineno"> 3001</span>  <span class="keyword">const</span> M matcher_for_key_;</div>
<div class="line"><a id="l03002" name="l03002"></a><span class="lineno"> 3002</span>};</div>
<div class="line"><a id="l03003" name="l03003"></a><span class="lineno"> 3003</span> </div>
<div class="line"><a id="l03004" name="l03004"></a><span class="lineno"> 3004</span><span class="comment">// Implements polymorphic Address(matcher_for_address).</span></div>
<div class="line"><a id="l03005" name="l03005"></a><span class="lineno"> 3005</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l03006" name="l03006"></a><span class="lineno"> 3006</span><span class="keyword">class </span>AddressMatcher {</div>
<div class="line"><a id="l03007" name="l03007"></a><span class="lineno"> 3007</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03008" name="l03008"></a><span class="lineno"> 3008</span>  <span class="keyword">explicit</span> AddressMatcher(InnerMatcher m) : matcher_(m) {}</div>
<div class="line"><a id="l03009" name="l03009"></a><span class="lineno"> 3009</span> </div>
<div class="line"><a id="l03010" name="l03010"></a><span class="lineno"> 3010</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a id="l03011" name="l03011"></a><span class="lineno"> 3011</span>  <span class="keyword">operator</span> Matcher&lt;Type&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l03012" name="l03012"></a><span class="lineno"> 3012</span>    <span class="keywordflow">return</span> Matcher&lt;Type&gt;(<span class="keyword">new</span> Impl&lt;const Type&amp;&gt;(matcher_));</div>
<div class="line"><a id="l03013" name="l03013"></a><span class="lineno"> 3013</span>  }</div>
<div class="line"><a id="l03014" name="l03014"></a><span class="lineno"> 3014</span> </div>
<div class="line"><a id="l03015" name="l03015"></a><span class="lineno"> 3015</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03016" name="l03016"></a><span class="lineno"> 3016</span>  <span class="comment">// The monomorphic implementation that works for a particular object type.</span></div>
<div class="line"><a id="l03017" name="l03017"></a><span class="lineno"> 3017</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Type&gt;</div>
<div class="line"><a id="l03018" name="l03018"></a><span class="lineno"> 3018</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Type&gt; {</div>
<div class="line"><a id="l03019" name="l03019"></a><span class="lineno"> 3019</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l03020" name="l03020"></a><span class="lineno"> 3020</span>    <span class="keyword">using </span>Address = <span class="keyword">const</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Type) *;</div>
<div class="line"><a id="l03021" name="l03021"></a><span class="lineno"> 3021</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> InnerMatcher&amp; matcher)</div>
<div class="line"><a id="l03022" name="l03022"></a><span class="lineno"> 3022</span>        : matcher_(MatcherCast&lt;Address&gt;(matcher)) {}</div>
<div class="line"><a id="l03023" name="l03023"></a><span class="lineno"> 3023</span> </div>
<div class="line"><a id="l03024" name="l03024"></a><span class="lineno"> 3024</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03025" name="l03025"></a><span class="lineno"> 3025</span>      *os &lt;&lt; <span class="stringliteral">&quot;has address that &quot;</span>;</div>
<div class="line"><a id="l03026" name="l03026"></a><span class="lineno"> 3026</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03027" name="l03027"></a><span class="lineno"> 3027</span>    }</div>
<div class="line"><a id="l03028" name="l03028"></a><span class="lineno"> 3028</span> </div>
<div class="line"><a id="l03029" name="l03029"></a><span class="lineno"> 3029</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03030" name="l03030"></a><span class="lineno"> 3030</span>      *os &lt;&lt; <span class="stringliteral">&quot;does not have address that &quot;</span>;</div>
<div class="line"><a id="l03031" name="l03031"></a><span class="lineno"> 3031</span>      matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03032" name="l03032"></a><span class="lineno"> 3032</span>    }</div>
<div class="line"><a id="l03033" name="l03033"></a><span class="lineno"> 3033</span> </div>
<div class="line"><a id="l03034" name="l03034"></a><span class="lineno"> 3034</span>    <span class="keywordtype">bool</span> MatchAndExplain(Type <span class="keywordtype">object</span>,</div>
<div class="line"><a id="l03035" name="l03035"></a><span class="lineno"> 3035</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03036" name="l03036"></a><span class="lineno"> 3036</span>      *listener &lt;&lt; <span class="stringliteral">&quot;which has address &quot;</span>;</div>
<div class="line"><a id="l03037" name="l03037"></a><span class="lineno"> 3037</span>      Address address = std::addressof(<span class="keywordtype">object</span>);</div>
<div class="line"><a id="l03038" name="l03038"></a><span class="lineno"> 3038</span>      <span class="keywordflow">return</span> MatchPrintAndExplain(address, matcher_, listener);</div>
<div class="line"><a id="l03039" name="l03039"></a><span class="lineno"> 3039</span>    }</div>
<div class="line"><a id="l03040" name="l03040"></a><span class="lineno"> 3040</span> </div>
<div class="line"><a id="l03041" name="l03041"></a><span class="lineno"> 3041</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l03042" name="l03042"></a><span class="lineno"> 3042</span>    <span class="keyword">const</span> Matcher&lt;Address&gt; matcher_;</div>
<div class="line"><a id="l03043" name="l03043"></a><span class="lineno"> 3043</span>  };</div>
<div class="line"><a id="l03044" name="l03044"></a><span class="lineno"> 3044</span>  <span class="keyword">const</span> InnerMatcher matcher_;</div>
<div class="line"><a id="l03045" name="l03045"></a><span class="lineno"> 3045</span>};</div>
<div class="line"><a id="l03046" name="l03046"></a><span class="lineno"> 3046</span> </div>
<div class="line"><a id="l03047" name="l03047"></a><span class="lineno"> 3047</span><span class="comment">// Implements Pair(first_matcher, second_matcher) for the given argument pair</span></div>
<div class="line"><a id="l03048" name="l03048"></a><span class="lineno"> 3048</span><span class="comment">// type with its two matchers. See Pair() function below.</span></div>
<div class="line"><a id="l03049" name="l03049"></a><span class="lineno"> 3049</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> PairType&gt;</div>
<div class="line"><a id="l03050" name="l03050"></a><span class="lineno"> 3050</span><span class="keyword">class </span>PairMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;PairType&gt; {</div>
<div class="line"><a id="l03051" name="l03051"></a><span class="lineno"> 3051</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03052" name="l03052"></a><span class="lineno"> 3052</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(PairType) RawPairType;</div>
<div class="line"><a id="l03053" name="l03053"></a><span class="lineno"> 3053</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RawPairType::first_type FirstType;</div>
<div class="line"><a id="l03054" name="l03054"></a><span class="lineno"> 3054</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RawPairType::second_type SecondType;</div>
<div class="line"><a id="l03055" name="l03055"></a><span class="lineno"> 3055</span> </div>
<div class="line"><a id="l03056" name="l03056"></a><span class="lineno"> 3056</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> FirstMatcher, <span class="keyword">typename</span> SecondMatcher&gt;</div>
<div class="line"><a id="l03057" name="l03057"></a><span class="lineno"> 3057</span>  PairMatcherImpl(FirstMatcher first_matcher, SecondMatcher second_matcher)</div>
<div class="line"><a id="l03058" name="l03058"></a><span class="lineno"> 3058</span>      : first_matcher_(</div>
<div class="line"><a id="l03059" name="l03059"></a><span class="lineno"> 3059</span>            testing::SafeMatcherCast&lt;const FirstType&amp;&gt;(first_matcher)),</div>
<div class="line"><a id="l03060" name="l03060"></a><span class="lineno"> 3060</span>        second_matcher_(</div>
<div class="line"><a id="l03061" name="l03061"></a><span class="lineno"> 3061</span>            testing::SafeMatcherCast&lt;const SecondType&amp;&gt;(second_matcher)) {}</div>
<div class="line"><a id="l03062" name="l03062"></a><span class="lineno"> 3062</span> </div>
<div class="line"><a id="l03063" name="l03063"></a><span class="lineno"> 3063</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l03064" name="l03064"></a><span class="lineno"> 3064</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03065" name="l03065"></a><span class="lineno"> 3065</span>    *os &lt;&lt; <span class="stringliteral">&quot;has a first field that &quot;</span>;</div>
<div class="line"><a id="l03066" name="l03066"></a><span class="lineno"> 3066</span>    first_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03067" name="l03067"></a><span class="lineno"> 3067</span>    *os &lt;&lt; <span class="stringliteral">&quot;, and has a second field that &quot;</span>;</div>
<div class="line"><a id="l03068" name="l03068"></a><span class="lineno"> 3068</span>    second_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03069" name="l03069"></a><span class="lineno"> 3069</span>  }</div>
<div class="line"><a id="l03070" name="l03070"></a><span class="lineno"> 3070</span> </div>
<div class="line"><a id="l03071" name="l03071"></a><span class="lineno"> 3071</span>  <span class="comment">// Describes what the negation of this matcher does.</span></div>
<div class="line"><a id="l03072" name="l03072"></a><span class="lineno"> 3072</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03073" name="l03073"></a><span class="lineno"> 3073</span>    *os &lt;&lt; <span class="stringliteral">&quot;has a first field that &quot;</span>;</div>
<div class="line"><a id="l03074" name="l03074"></a><span class="lineno"> 3074</span>    first_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l03075" name="l03075"></a><span class="lineno"> 3075</span>    *os &lt;&lt; <span class="stringliteral">&quot;, or has a second field that &quot;</span>;</div>
<div class="line"><a id="l03076" name="l03076"></a><span class="lineno"> 3076</span>    second_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l03077" name="l03077"></a><span class="lineno"> 3077</span>  }</div>
<div class="line"><a id="l03078" name="l03078"></a><span class="lineno"> 3078</span> </div>
<div class="line"><a id="l03079" name="l03079"></a><span class="lineno"> 3079</span>  <span class="comment">// Returns true if and only if &#39;a_pair.first&#39; matches first_matcher and</span></div>
<div class="line"><a id="l03080" name="l03080"></a><span class="lineno"> 3080</span>  <span class="comment">// &#39;a_pair.second&#39; matches second_matcher.</span></div>
<div class="line"><a id="l03081" name="l03081"></a><span class="lineno"> 3081</span>  <span class="keywordtype">bool</span> MatchAndExplain(PairType a_pair,</div>
<div class="line"><a id="l03082" name="l03082"></a><span class="lineno"> 3082</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03083" name="l03083"></a><span class="lineno"> 3083</span>    <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l03084" name="l03084"></a><span class="lineno"> 3084</span>      <span class="comment">// If the listener is not interested, we don&#39;t need to construct the</span></div>
<div class="line"><a id="l03085" name="l03085"></a><span class="lineno"> 3085</span>      <span class="comment">// explanation.</span></div>
<div class="line"><a id="l03086" name="l03086"></a><span class="lineno"> 3086</span>      <span class="keywordflow">return</span> first_matcher_.Matches(pair_getters::First(a_pair, Rank0())) &amp;&amp;</div>
<div class="line"><a id="l03087" name="l03087"></a><span class="lineno"> 3087</span>             second_matcher_.Matches(pair_getters::Second(a_pair, Rank0()));</div>
<div class="line"><a id="l03088" name="l03088"></a><span class="lineno"> 3088</span>    }</div>
<div class="line"><a id="l03089" name="l03089"></a><span class="lineno"> 3089</span>    StringMatchResultListener first_inner_listener;</div>
<div class="line"><a id="l03090" name="l03090"></a><span class="lineno"> 3090</span>    <span class="keywordflow">if</span> (!first_matcher_.MatchAndExplain(pair_getters::First(a_pair, Rank0()),</div>
<div class="line"><a id="l03091" name="l03091"></a><span class="lineno"> 3091</span>                                        &amp;first_inner_listener)) {</div>
<div class="line"><a id="l03092" name="l03092"></a><span class="lineno"> 3092</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose first field does not match&quot;</span>;</div>
<div class="line"><a id="l03093" name="l03093"></a><span class="lineno"> 3093</span>      PrintIfNotEmpty(first_inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l03094" name="l03094"></a><span class="lineno"> 3094</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03095" name="l03095"></a><span class="lineno"> 3095</span>    }</div>
<div class="line"><a id="l03096" name="l03096"></a><span class="lineno"> 3096</span>    StringMatchResultListener second_inner_listener;</div>
<div class="line"><a id="l03097" name="l03097"></a><span class="lineno"> 3097</span>    <span class="keywordflow">if</span> (!second_matcher_.MatchAndExplain(pair_getters::Second(a_pair, Rank0()),</div>
<div class="line"><a id="l03098" name="l03098"></a><span class="lineno"> 3098</span>                                         &amp;second_inner_listener)) {</div>
<div class="line"><a id="l03099" name="l03099"></a><span class="lineno"> 3099</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose second field does not match&quot;</span>;</div>
<div class="line"><a id="l03100" name="l03100"></a><span class="lineno"> 3100</span>      PrintIfNotEmpty(second_inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l03101" name="l03101"></a><span class="lineno"> 3101</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03102" name="l03102"></a><span class="lineno"> 3102</span>    }</div>
<div class="line"><a id="l03103" name="l03103"></a><span class="lineno"> 3103</span>    ExplainSuccess(first_inner_listener.str(), second_inner_listener.str(),</div>
<div class="line"><a id="l03104" name="l03104"></a><span class="lineno"> 3104</span>                   listener);</div>
<div class="line"><a id="l03105" name="l03105"></a><span class="lineno"> 3105</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l03106" name="l03106"></a><span class="lineno"> 3106</span>  }</div>
<div class="line"><a id="l03107" name="l03107"></a><span class="lineno"> 3107</span> </div>
<div class="line"><a id="l03108" name="l03108"></a><span class="lineno"> 3108</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03109" name="l03109"></a><span class="lineno"> 3109</span>  <span class="keywordtype">void</span> ExplainSuccess(<span class="keyword">const</span> std::string&amp; first_explanation,</div>
<div class="line"><a id="l03110" name="l03110"></a><span class="lineno"> 3110</span>                      <span class="keyword">const</span> std::string&amp; second_explanation,</div>
<div class="line"><a id="l03111" name="l03111"></a><span class="lineno"> 3111</span>                      MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03112" name="l03112"></a><span class="lineno"> 3112</span>    *listener &lt;&lt; <span class="stringliteral">&quot;whose both fields match&quot;</span>;</div>
<div class="line"><a id="l03113" name="l03113"></a><span class="lineno"> 3113</span>    <span class="keywordflow">if</span> (first_explanation != <span class="stringliteral">&quot;&quot;</span>) {</div>
<div class="line"><a id="l03114" name="l03114"></a><span class="lineno"> 3114</span>      *listener &lt;&lt; <span class="stringliteral">&quot;, where the first field is a value &quot;</span> &lt;&lt; first_explanation;</div>
<div class="line"><a id="l03115" name="l03115"></a><span class="lineno"> 3115</span>    }</div>
<div class="line"><a id="l03116" name="l03116"></a><span class="lineno"> 3116</span>    <span class="keywordflow">if</span> (second_explanation != <span class="stringliteral">&quot;&quot;</span>) {</div>
<div class="line"><a id="l03117" name="l03117"></a><span class="lineno"> 3117</span>      *listener &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
<div class="line"><a id="l03118" name="l03118"></a><span class="lineno"> 3118</span>      <span class="keywordflow">if</span> (first_explanation != <span class="stringliteral">&quot;&quot;</span>) {</div>
<div class="line"><a id="l03119" name="l03119"></a><span class="lineno"> 3119</span>        *listener &lt;&lt; <span class="stringliteral">&quot;and &quot;</span>;</div>
<div class="line"><a id="l03120" name="l03120"></a><span class="lineno"> 3120</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l03121" name="l03121"></a><span class="lineno"> 3121</span>        *listener &lt;&lt; <span class="stringliteral">&quot;where &quot;</span>;</div>
<div class="line"><a id="l03122" name="l03122"></a><span class="lineno"> 3122</span>      }</div>
<div class="line"><a id="l03123" name="l03123"></a><span class="lineno"> 3123</span>      *listener &lt;&lt; <span class="stringliteral">&quot;the second field is a value &quot;</span> &lt;&lt; second_explanation;</div>
<div class="line"><a id="l03124" name="l03124"></a><span class="lineno"> 3124</span>    }</div>
<div class="line"><a id="l03125" name="l03125"></a><span class="lineno"> 3125</span>  }</div>
<div class="line"><a id="l03126" name="l03126"></a><span class="lineno"> 3126</span> </div>
<div class="line"><a id="l03127" name="l03127"></a><span class="lineno"> 3127</span>  <span class="keyword">const</span> Matcher&lt;const FirstType&amp;&gt; first_matcher_;</div>
<div class="line"><a id="l03128" name="l03128"></a><span class="lineno"> 3128</span>  <span class="keyword">const</span> Matcher&lt;const SecondType&amp;&gt; second_matcher_;</div>
<div class="line"><a id="l03129" name="l03129"></a><span class="lineno"> 3129</span>};</div>
<div class="line"><a id="l03130" name="l03130"></a><span class="lineno"> 3130</span> </div>
<div class="line"><a id="l03131" name="l03131"></a><span class="lineno"> 3131</span><span class="comment">// Implements polymorphic Pair(first_matcher, second_matcher).</span></div>
<div class="line"><a id="l03132" name="l03132"></a><span class="lineno"> 3132</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> FirstMatcher, <span class="keyword">typename</span> SecondMatcher&gt;</div>
<div class="line"><a id="l03133" name="l03133"></a><span class="lineno"> 3133</span><span class="keyword">class </span>PairMatcher {</div>
<div class="line"><a id="l03134" name="l03134"></a><span class="lineno"> 3134</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03135" name="l03135"></a><span class="lineno"> 3135</span>  PairMatcher(FirstMatcher first_matcher, SecondMatcher second_matcher)</div>
<div class="line"><a id="l03136" name="l03136"></a><span class="lineno"> 3136</span>      : first_matcher_(first_matcher), second_matcher_(second_matcher) {}</div>
<div class="line"><a id="l03137" name="l03137"></a><span class="lineno"> 3137</span> </div>
<div class="line"><a id="l03138" name="l03138"></a><span class="lineno"> 3138</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> PairType&gt;</div>
<div class="line"><a id="l03139" name="l03139"></a><span class="lineno"> 3139</span>  <span class="keyword">operator</span> Matcher&lt;PairType&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03140" name="l03140"></a><span class="lineno"> 3140</span>    <span class="keywordflow">return</span> Matcher&lt;PairType&gt;(</div>
<div class="line"><a id="l03141" name="l03141"></a><span class="lineno"> 3141</span>        <span class="keyword">new</span> PairMatcherImpl&lt;const PairType&amp;&gt;(first_matcher_, second_matcher_));</div>
<div class="line"><a id="l03142" name="l03142"></a><span class="lineno"> 3142</span>  }</div>
<div class="line"><a id="l03143" name="l03143"></a><span class="lineno"> 3143</span> </div>
<div class="line"><a id="l03144" name="l03144"></a><span class="lineno"> 3144</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03145" name="l03145"></a><span class="lineno"> 3145</span>  <span class="keyword">const</span> FirstMatcher first_matcher_;</div>
<div class="line"><a id="l03146" name="l03146"></a><span class="lineno"> 3146</span>  <span class="keyword">const</span> SecondMatcher second_matcher_;</div>
<div class="line"><a id="l03147" name="l03147"></a><span class="lineno"> 3147</span>};</div>
<div class="line"><a id="l03148" name="l03148"></a><span class="lineno"> 3148</span> </div>
<div class="line"><a id="l03149" name="l03149"></a><span class="lineno"> 3149</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span>... I&gt;</div>
<div class="line"><a id="l03150" name="l03150"></a><span class="lineno"> 3150</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, <a class="code hl_struct" href="structtesting_1_1internal_1_1_index_sequence.html">IndexSequence&lt;I...&gt;</a>, <span class="keywordtype">int</span>)</div>
<div class="line"><a id="l03151" name="l03151"></a><span class="lineno"> 3151</span>    -&gt; <span class="keyword">decltype</span>(std::tie(get&lt;I&gt;(t)...)) {</div>
<div class="line"><a id="l03152" name="l03152"></a><span class="lineno"> 3152</span>  <span class="keyword">static_assert</span>(std::tuple_size&lt;T&gt;::value == <span class="keyword">sizeof</span>...(I),</div>
<div class="line"><a id="l03153" name="l03153"></a><span class="lineno"> 3153</span>                <span class="stringliteral">&quot;Number of arguments doesn&#39;t match the number of fields.&quot;</span>);</div>
<div class="line"><a id="l03154" name="l03154"></a><span class="lineno"> 3154</span>  <span class="keywordflow">return</span> std::tie(get&lt;I&gt;(t)...);</div>
<div class="line"><a id="l03155" name="l03155"></a><span class="lineno"> 3155</span>}</div>
<div class="line"><a id="l03156" name="l03156"></a><span class="lineno"> 3156</span> </div>
<div class="line"><a id="l03157" name="l03157"></a><span class="lineno"> 3157</span><span class="preprocessor">#if defined(__cpp_structured_bindings) &amp;&amp; __cpp_structured_bindings &gt;= 201606</span></div>
<div class="line"><a id="l03158" name="l03158"></a><span class="lineno"> 3158</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03159" name="l03159"></a><span class="lineno"> 3159</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;1&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03160" name="l03160"></a><span class="lineno"> 3160</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a] = t;</div>
<div class="line"><a id="l03161" name="l03161"></a><span class="lineno"> 3161</span>  <span class="keywordflow">return</span> std::tie(a);</div>
<div class="line"><a id="l03162" name="l03162"></a><span class="lineno"> 3162</span>}</div>
<div class="line"><a id="l03163" name="l03163"></a><span class="lineno"> 3163</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03164" name="l03164"></a><span class="lineno"> 3164</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;2&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03165" name="l03165"></a><span class="lineno"> 3165</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b] = t;</div>
<div class="line"><a id="l03166" name="l03166"></a><span class="lineno"> 3166</span>  <span class="keywordflow">return</span> std::tie(a, b);</div>
<div class="line"><a id="l03167" name="l03167"></a><span class="lineno"> 3167</span>}</div>
<div class="line"><a id="l03168" name="l03168"></a><span class="lineno"> 3168</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03169" name="l03169"></a><span class="lineno"> 3169</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;3&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03170" name="l03170"></a><span class="lineno"> 3170</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c] = t;</div>
<div class="line"><a id="l03171" name="l03171"></a><span class="lineno"> 3171</span>  <span class="keywordflow">return</span> std::tie(a, b, c);</div>
<div class="line"><a id="l03172" name="l03172"></a><span class="lineno"> 3172</span>}</div>
<div class="line"><a id="l03173" name="l03173"></a><span class="lineno"> 3173</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03174" name="l03174"></a><span class="lineno"> 3174</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;4&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03175" name="l03175"></a><span class="lineno"> 3175</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d] = t;</div>
<div class="line"><a id="l03176" name="l03176"></a><span class="lineno"> 3176</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d);</div>
<div class="line"><a id="l03177" name="l03177"></a><span class="lineno"> 3177</span>}</div>
<div class="line"><a id="l03178" name="l03178"></a><span class="lineno"> 3178</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03179" name="l03179"></a><span class="lineno"> 3179</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;5&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03180" name="l03180"></a><span class="lineno"> 3180</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e] = t;</div>
<div class="line"><a id="l03181" name="l03181"></a><span class="lineno"> 3181</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e);</div>
<div class="line"><a id="l03182" name="l03182"></a><span class="lineno"> 3182</span>}</div>
<div class="line"><a id="l03183" name="l03183"></a><span class="lineno"> 3183</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03184" name="l03184"></a><span class="lineno"> 3184</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;6&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03185" name="l03185"></a><span class="lineno"> 3185</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f] = t;</div>
<div class="line"><a id="l03186" name="l03186"></a><span class="lineno"> 3186</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f);</div>
<div class="line"><a id="l03187" name="l03187"></a><span class="lineno"> 3187</span>}</div>
<div class="line"><a id="l03188" name="l03188"></a><span class="lineno"> 3188</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03189" name="l03189"></a><span class="lineno"> 3189</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;7&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03190" name="l03190"></a><span class="lineno"> 3190</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g] = t;</div>
<div class="line"><a id="l03191" name="l03191"></a><span class="lineno"> 3191</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g);</div>
<div class="line"><a id="l03192" name="l03192"></a><span class="lineno"> 3192</span>}</div>
<div class="line"><a id="l03193" name="l03193"></a><span class="lineno"> 3193</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03194" name="l03194"></a><span class="lineno"> 3194</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;8&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03195" name="l03195"></a><span class="lineno"> 3195</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h] = t;</div>
<div class="line"><a id="l03196" name="l03196"></a><span class="lineno"> 3196</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h);</div>
<div class="line"><a id="l03197" name="l03197"></a><span class="lineno"> 3197</span>}</div>
<div class="line"><a id="l03198" name="l03198"></a><span class="lineno"> 3198</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03199" name="l03199"></a><span class="lineno"> 3199</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;9&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03200" name="l03200"></a><span class="lineno"> 3200</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i] = t;</div>
<div class="line"><a id="l03201" name="l03201"></a><span class="lineno"> 3201</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i);</div>
<div class="line"><a id="l03202" name="l03202"></a><span class="lineno"> 3202</span>}</div>
<div class="line"><a id="l03203" name="l03203"></a><span class="lineno"> 3203</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03204" name="l03204"></a><span class="lineno"> 3204</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;10&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03205" name="l03205"></a><span class="lineno"> 3205</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j] = t;</div>
<div class="line"><a id="l03206" name="l03206"></a><span class="lineno"> 3206</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j);</div>
<div class="line"><a id="l03207" name="l03207"></a><span class="lineno"> 3207</span>}</div>
<div class="line"><a id="l03208" name="l03208"></a><span class="lineno"> 3208</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03209" name="l03209"></a><span class="lineno"> 3209</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;11&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03210" name="l03210"></a><span class="lineno"> 3210</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k] = t;</div>
<div class="line"><a id="l03211" name="l03211"></a><span class="lineno"> 3211</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k);</div>
<div class="line"><a id="l03212" name="l03212"></a><span class="lineno"> 3212</span>}</div>
<div class="line"><a id="l03213" name="l03213"></a><span class="lineno"> 3213</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03214" name="l03214"></a><span class="lineno"> 3214</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;12&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03215" name="l03215"></a><span class="lineno"> 3215</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l] = t;</div>
<div class="line"><a id="l03216" name="l03216"></a><span class="lineno"> 3216</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l);</div>
<div class="line"><a id="l03217" name="l03217"></a><span class="lineno"> 3217</span>}</div>
<div class="line"><a id="l03218" name="l03218"></a><span class="lineno"> 3218</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03219" name="l03219"></a><span class="lineno"> 3219</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;13&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03220" name="l03220"></a><span class="lineno"> 3220</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m] = t;</div>
<div class="line"><a id="l03221" name="l03221"></a><span class="lineno"> 3221</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m);</div>
<div class="line"><a id="l03222" name="l03222"></a><span class="lineno"> 3222</span>}</div>
<div class="line"><a id="l03223" name="l03223"></a><span class="lineno"> 3223</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03224" name="l03224"></a><span class="lineno"> 3224</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;14&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03225" name="l03225"></a><span class="lineno"> 3225</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n] = t;</div>
<div class="line"><a id="l03226" name="l03226"></a><span class="lineno"> 3226</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n);</div>
<div class="line"><a id="l03227" name="l03227"></a><span class="lineno"> 3227</span>}</div>
<div class="line"><a id="l03228" name="l03228"></a><span class="lineno"> 3228</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03229" name="l03229"></a><span class="lineno"> 3229</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;15&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03230" name="l03230"></a><span class="lineno"> 3230</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o] = t;</div>
<div class="line"><a id="l03231" name="l03231"></a><span class="lineno"> 3231</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o);</div>
<div class="line"><a id="l03232" name="l03232"></a><span class="lineno"> 3232</span>}</div>
<div class="line"><a id="l03233" name="l03233"></a><span class="lineno"> 3233</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03234" name="l03234"></a><span class="lineno"> 3234</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;16&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03235" name="l03235"></a><span class="lineno"> 3235</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p] = t;</div>
<div class="line"><a id="l03236" name="l03236"></a><span class="lineno"> 3236</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p);</div>
<div class="line"><a id="l03237" name="l03237"></a><span class="lineno"> 3237</span>}</div>
<div class="line"><a id="l03238" name="l03238"></a><span class="lineno"> 3238</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03239" name="l03239"></a><span class="lineno"> 3239</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;17&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03240" name="l03240"></a><span class="lineno"> 3240</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q] = t;</div>
<div class="line"><a id="l03241" name="l03241"></a><span class="lineno"> 3241</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q);</div>
<div class="line"><a id="l03242" name="l03242"></a><span class="lineno"> 3242</span>}</div>
<div class="line"><a id="l03243" name="l03243"></a><span class="lineno"> 3243</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03244" name="l03244"></a><span class="lineno"> 3244</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;18&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03245" name="l03245"></a><span class="lineno"> 3245</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r] = t;</div>
<div class="line"><a id="l03246" name="l03246"></a><span class="lineno"> 3246</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r);</div>
<div class="line"><a id="l03247" name="l03247"></a><span class="lineno"> 3247</span>}</div>
<div class="line"><a id="l03248" name="l03248"></a><span class="lineno"> 3248</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03249" name="l03249"></a><span class="lineno"> 3249</span><span class="keyword">auto</span> UnpackStructImpl(<span class="keyword">const</span> T&amp; t, MakeIndexSequence&lt;19&gt;, <span class="keywordtype">char</span>) {</div>
<div class="line"><a id="l03250" name="l03250"></a><span class="lineno"> 3250</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s] = t;</div>
<div class="line"><a id="l03251" name="l03251"></a><span class="lineno"> 3251</span>  <span class="keywordflow">return</span> std::tie(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s);</div>
<div class="line"><a id="l03252" name="l03252"></a><span class="lineno"> 3252</span>}</div>
<div class="line"><a id="l03253" name="l03253"></a><span class="lineno"> 3253</span><span class="preprocessor">#endif  </span><span class="comment">// defined(__cpp_structured_bindings)</span></div>
<div class="line"><a id="l03254" name="l03254"></a><span class="lineno"> 3254</span> </div>
<div class="line"><a id="l03255" name="l03255"></a><span class="lineno"> 3255</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> I, <span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03256" name="l03256"></a><span class="lineno"> 3256</span><span class="keyword">auto</span> UnpackStruct(<span class="keyword">const</span> T&amp; t)</div>
<div class="line"><a id="l03257" name="l03257"></a><span class="lineno"> 3257</span>    -&gt; <span class="keyword">decltype</span>((UnpackStructImpl)(t, MakeIndexSequence&lt;I&gt;{}, 0)) {</div>
<div class="line"><a id="l03258" name="l03258"></a><span class="lineno"> 3258</span>  <span class="keywordflow">return</span> (UnpackStructImpl)(t, MakeIndexSequence&lt;I&gt;{}, 0);</div>
<div class="line"><a id="l03259" name="l03259"></a><span class="lineno"> 3259</span>}</div>
<div class="line"><a id="l03260" name="l03260"></a><span class="lineno"> 3260</span> </div>
<div class="line"><a id="l03261" name="l03261"></a><span class="lineno"> 3261</span><span class="comment">// Helper function to do comma folding in C++11.</span></div>
<div class="line"><a id="l03262" name="l03262"></a><span class="lineno"> 3262</span><span class="comment">// The array ensures left-to-right order of evaluation.</span></div>
<div class="line"><a id="l03263" name="l03263"></a><span class="lineno"> 3263</span><span class="comment">// Usage: VariadicExpand({expr...});</span></div>
<div class="line"><a id="l03264" name="l03264"></a><span class="lineno"> 3264</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l03265" name="l03265"></a><span class="lineno"> 3265</span><span class="keywordtype">void</span> VariadicExpand(<span class="keyword">const</span> T (&amp;)[N]) {}</div>
<div class="line"><a id="l03266" name="l03266"></a><span class="lineno"> 3266</span> </div>
<div class="line"><a id="l03267" name="l03267"></a><span class="lineno"> 3267</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Struct, <span class="keyword">typename</span> StructSize&gt;</div>
<div class="line"><a id="l03268" name="l03268"></a><span class="lineno"> 3268</span><span class="keyword">class </span>FieldsAreMatcherImpl;</div>
<div class="line"><a id="l03269" name="l03269"></a><span class="lineno"> 3269</span> </div>
<div class="line"><a id="l03270" name="l03270"></a><span class="lineno"> 3270</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Struct, <span class="keywordtype">size_t</span>... I&gt;</div>
<div class="line"><a id="l03271" name="l03271"></a><span class="lineno"> 3271</span><span class="keyword">class </span>FieldsAreMatcherImpl&lt;Struct, <a class="code hl_struct" href="structtesting_1_1internal_1_1_index_sequence.html">IndexSequence</a>&lt;I...&gt;&gt;</div>
<div class="line"><a id="l03272" name="l03272"></a><span class="lineno"> 3272</span>    : <span class="keyword">public</span> MatcherInterface&lt;Struct&gt; {</div>
<div class="line"><a id="l03273" name="l03273"></a><span class="lineno"> 3273</span>  <span class="keyword">using </span>UnpackedType =</div>
<div class="line"><a id="l03274" name="l03274"></a><span class="lineno"> 3274</span>      <span class="keyword">decltype</span>(UnpackStruct&lt;<span class="keyword">sizeof</span>...(I)&gt;(std::declval&lt;const Struct&amp;&gt;()));</div>
<div class="line"><a id="l03275" name="l03275"></a><span class="lineno"> 3275</span>  <span class="keyword">using </span>MatchersType = std::tuple&lt;</div>
<div class="line"><a id="l03276" name="l03276"></a><span class="lineno"> 3276</span>      Matcher&lt;const typename std::tuple_element&lt;I, UnpackedType&gt;::type&amp;&gt;...&gt;;</div>
<div class="line"><a id="l03277" name="l03277"></a><span class="lineno"> 3277</span> </div>
<div class="line"><a id="l03278" name="l03278"></a><span class="lineno"> 3278</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03279" name="l03279"></a><span class="lineno"> 3279</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Inner&gt;</div>
<div class="line"><a id="l03280" name="l03280"></a><span class="lineno"> 3280</span>  <span class="keyword">explicit</span> FieldsAreMatcherImpl(<span class="keyword">const</span> Inner&amp; matchers)</div>
<div class="line"><a id="l03281" name="l03281"></a><span class="lineno"> 3281</span>      : matchers_(testing::SafeMatcherCast&lt;</div>
<div class="line"><a id="l03282" name="l03282"></a><span class="lineno"> 3282</span>                  const typename std::tuple_element&lt;I, UnpackedType&gt;::type&amp;&gt;(</div>
<div class="line"><a id="l03283" name="l03283"></a><span class="lineno"> 3283</span>            std::get&lt;I&gt;(matchers))...) {}</div>
<div class="line"><a id="l03284" name="l03284"></a><span class="lineno"> 3284</span> </div>
<div class="line"><a id="l03285" name="l03285"></a><span class="lineno"> 3285</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03286" name="l03286"></a><span class="lineno"> 3286</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* separator = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l03287" name="l03287"></a><span class="lineno"> 3287</span>    VariadicExpand(</div>
<div class="line"><a id="l03288" name="l03288"></a><span class="lineno"> 3288</span>        {(*os &lt;&lt; separator &lt;&lt; <span class="stringliteral">&quot;has field #&quot;</span> &lt;&lt; I &lt;&lt; <span class="stringliteral">&quot; that &quot;</span>,</div>
<div class="line"><a id="l03289" name="l03289"></a><span class="lineno"> 3289</span>          std::get&lt;I&gt;(matchers_).DescribeTo(os), separator = <span class="stringliteral">&quot;, and &quot;</span>)...});</div>
<div class="line"><a id="l03290" name="l03290"></a><span class="lineno"> 3290</span>  }</div>
<div class="line"><a id="l03291" name="l03291"></a><span class="lineno"> 3291</span> </div>
<div class="line"><a id="l03292" name="l03292"></a><span class="lineno"> 3292</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03293" name="l03293"></a><span class="lineno"> 3293</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* separator = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l03294" name="l03294"></a><span class="lineno"> 3294</span>    VariadicExpand({(*os &lt;&lt; separator &lt;&lt; <span class="stringliteral">&quot;has field #&quot;</span> &lt;&lt; I &lt;&lt; <span class="stringliteral">&quot; that &quot;</span>,</div>
<div class="line"><a id="l03295" name="l03295"></a><span class="lineno"> 3295</span>                     std::get&lt;I&gt;(matchers_).DescribeNegationTo(os),</div>
<div class="line"><a id="l03296" name="l03296"></a><span class="lineno"> 3296</span>                     separator = <span class="stringliteral">&quot;, or &quot;</span>)...});</div>
<div class="line"><a id="l03297" name="l03297"></a><span class="lineno"> 3297</span>  }</div>
<div class="line"><a id="l03298" name="l03298"></a><span class="lineno"> 3298</span> </div>
<div class="line"><a id="l03299" name="l03299"></a><span class="lineno"> 3299</span>  <span class="keywordtype">bool</span> MatchAndExplain(Struct t, MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03300" name="l03300"></a><span class="lineno"> 3300</span>    <span class="keywordflow">return</span> MatchInternal((UnpackStruct&lt;<span class="keyword">sizeof</span>...(I)&gt;)(t), listener);</div>
<div class="line"><a id="l03301" name="l03301"></a><span class="lineno"> 3301</span>  }</div>
<div class="line"><a id="l03302" name="l03302"></a><span class="lineno"> 3302</span> </div>
<div class="line"><a id="l03303" name="l03303"></a><span class="lineno"> 3303</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03304" name="l03304"></a><span class="lineno"> 3304</span>  <span class="keywordtype">bool</span> MatchInternal(UnpackedType tuple, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03305" name="l03305"></a><span class="lineno"> 3305</span>    <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l03306" name="l03306"></a><span class="lineno"> 3306</span>      <span class="comment">// If the listener is not interested, we don&#39;t need to construct the</span></div>
<div class="line"><a id="l03307" name="l03307"></a><span class="lineno"> 3307</span>      <span class="comment">// explanation.</span></div>
<div class="line"><a id="l03308" name="l03308"></a><span class="lineno"> 3308</span>      <span class="keywordtype">bool</span> good = <span class="keyword">true</span>;</div>
<div class="line"><a id="l03309" name="l03309"></a><span class="lineno"> 3309</span>      VariadicExpand({good = good &amp;&amp; std::get&lt;I&gt;(matchers_).Matches(</div>
<div class="line"><a id="l03310" name="l03310"></a><span class="lineno"> 3310</span>                                         std::get&lt;I&gt;(tuple))...});</div>
<div class="line"><a id="l03311" name="l03311"></a><span class="lineno"> 3311</span>      <span class="keywordflow">return</span> good;</div>
<div class="line"><a id="l03312" name="l03312"></a><span class="lineno"> 3312</span>    }</div>
<div class="line"><a id="l03313" name="l03313"></a><span class="lineno"> 3313</span> </div>
<div class="line"><a id="l03314" name="l03314"></a><span class="lineno"> 3314</span>    <span class="keywordtype">size_t</span> failed_pos = ~size_t{};</div>
<div class="line"><a id="l03315" name="l03315"></a><span class="lineno"> 3315</span> </div>
<div class="line"><a id="l03316" name="l03316"></a><span class="lineno"> 3316</span>    std::vector&lt;StringMatchResultListener&gt; inner_listener(<span class="keyword">sizeof</span>...(I));</div>
<div class="line"><a id="l03317" name="l03317"></a><span class="lineno"> 3317</span> </div>
<div class="line"><a id="l03318" name="l03318"></a><span class="lineno"> 3318</span>    VariadicExpand(</div>
<div class="line"><a id="l03319" name="l03319"></a><span class="lineno"> 3319</span>        {failed_pos == ~size_t{}&amp;&amp; !std::get&lt;I&gt;(matchers_).MatchAndExplain(</div>
<div class="line"><a id="l03320" name="l03320"></a><span class="lineno"> 3320</span>                           std::get&lt;I&gt;(tuple), &amp;inner_listener[I])</div>
<div class="line"><a id="l03321" name="l03321"></a><span class="lineno"> 3321</span>             ? failed_pos = I</div>
<div class="line"><a id="l03322" name="l03322"></a><span class="lineno"> 3322</span>             : 0 ...});</div>
<div class="line"><a id="l03323" name="l03323"></a><span class="lineno"> 3323</span>    <span class="keywordflow">if</span> (failed_pos != ~<span class="keywordtype">size_t</span>{}) {</div>
<div class="line"><a id="l03324" name="l03324"></a><span class="lineno"> 3324</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose field #&quot;</span> &lt;&lt; failed_pos &lt;&lt; <span class="stringliteral">&quot; does not match&quot;</span>;</div>
<div class="line"><a id="l03325" name="l03325"></a><span class="lineno"> 3325</span>      PrintIfNotEmpty(inner_listener[failed_pos].str(), listener-&gt;stream());</div>
<div class="line"><a id="l03326" name="l03326"></a><span class="lineno"> 3326</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03327" name="l03327"></a><span class="lineno"> 3327</span>    }</div>
<div class="line"><a id="l03328" name="l03328"></a><span class="lineno"> 3328</span> </div>
<div class="line"><a id="l03329" name="l03329"></a><span class="lineno"> 3329</span>    *listener &lt;&lt; <span class="stringliteral">&quot;whose all elements match&quot;</span>;</div>
<div class="line"><a id="l03330" name="l03330"></a><span class="lineno"> 3330</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* separator = <span class="stringliteral">&quot;, where&quot;</span>;</div>
<div class="line"><a id="l03331" name="l03331"></a><span class="lineno"> 3331</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> index = 0; index &lt; <span class="keyword">sizeof</span>...(I); ++index) {</div>
<div class="line"><a id="l03332" name="l03332"></a><span class="lineno"> 3332</span>      <span class="keyword">const</span> std::string str = inner_listener[index].str();</div>
<div class="line"><a id="l03333" name="l03333"></a><span class="lineno"> 3333</span>      <span class="keywordflow">if</span> (!str.empty()) {</div>
<div class="line"><a id="l03334" name="l03334"></a><span class="lineno"> 3334</span>        *listener &lt;&lt; separator &lt;&lt; <span class="stringliteral">&quot; field #&quot;</span> &lt;&lt; index &lt;&lt; <span class="stringliteral">&quot; is a value &quot;</span> &lt;&lt; str;</div>
<div class="line"><a id="l03335" name="l03335"></a><span class="lineno"> 3335</span>        separator = <span class="stringliteral">&quot;, and&quot;</span>;</div>
<div class="line"><a id="l03336" name="l03336"></a><span class="lineno"> 3336</span>      }</div>
<div class="line"><a id="l03337" name="l03337"></a><span class="lineno"> 3337</span>    }</div>
<div class="line"><a id="l03338" name="l03338"></a><span class="lineno"> 3338</span> </div>
<div class="line"><a id="l03339" name="l03339"></a><span class="lineno"> 3339</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l03340" name="l03340"></a><span class="lineno"> 3340</span>  }</div>
<div class="line"><a id="l03341" name="l03341"></a><span class="lineno"> 3341</span> </div>
<div class="line"><a id="l03342" name="l03342"></a><span class="lineno"> 3342</span>  MatchersType matchers_;</div>
<div class="line"><a id="l03343" name="l03343"></a><span class="lineno"> 3343</span>};</div>
<div class="line"><a id="l03344" name="l03344"></a><span class="lineno"> 3344</span> </div>
<div class="line"><a id="l03345" name="l03345"></a><span class="lineno"> 3345</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Inner&gt;</div>
<div class="line"><a id="l03346" name="l03346"></a><span class="lineno"> 3346</span><span class="keyword">class </span>FieldsAreMatcher {</div>
<div class="line"><a id="l03347" name="l03347"></a><span class="lineno"> 3347</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03348" name="l03348"></a><span class="lineno"> 3348</span>  <span class="keyword">explicit</span> FieldsAreMatcher(Inner... inner) : matchers_(std::move(inner)...) {}</div>
<div class="line"><a id="l03349" name="l03349"></a><span class="lineno"> 3349</span> </div>
<div class="line"><a id="l03350" name="l03350"></a><span class="lineno"> 3350</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Struct&gt;</div>
<div class="line"><a id="l03351" name="l03351"></a><span class="lineno"> 3351</span>  <span class="keyword">operator</span> Matcher&lt;Struct&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l03352" name="l03352"></a><span class="lineno"> 3352</span>    <span class="keywordflow">return</span> Matcher&lt;Struct&gt;(</div>
<div class="line"><a id="l03353" name="l03353"></a><span class="lineno"> 3353</span>        <span class="keyword">new</span> FieldsAreMatcherImpl&lt;<span class="keyword">const</span> Struct&amp;, IndexSequenceFor&lt;Inner...&gt;&gt;(</div>
<div class="line"><a id="l03354" name="l03354"></a><span class="lineno"> 3354</span>            matchers_));</div>
<div class="line"><a id="l03355" name="l03355"></a><span class="lineno"> 3355</span>  }</div>
<div class="line"><a id="l03356" name="l03356"></a><span class="lineno"> 3356</span> </div>
<div class="line"><a id="l03357" name="l03357"></a><span class="lineno"> 3357</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03358" name="l03358"></a><span class="lineno"> 3358</span>  std::tuple&lt;Inner...&gt; matchers_;</div>
<div class="line"><a id="l03359" name="l03359"></a><span class="lineno"> 3359</span>};</div>
<div class="line"><a id="l03360" name="l03360"></a><span class="lineno"> 3360</span> </div>
<div class="line"><a id="l03361" name="l03361"></a><span class="lineno"> 3361</span><span class="comment">// Implements ElementsAre() and ElementsAreArray().</span></div>
<div class="line"><a id="l03362" name="l03362"></a><span class="lineno"> 3362</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03363" name="l03363"></a><span class="lineno"> 3363</span><span class="keyword">class </span>ElementsAreMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;Container&gt; {</div>
<div class="line"><a id="l03364" name="l03364"></a><span class="lineno"> 3364</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03365" name="l03365"></a><span class="lineno"> 3365</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;</div>
<div class="line"><a id="l03366" name="l03366"></a><span class="lineno"> 3366</span>  <span class="keyword">typedef</span> internal::StlContainerView&lt;RawContainer&gt; View;</div>
<div class="line"><a id="l03367" name="l03367"></a><span class="lineno"> 3367</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::type StlContainer;</div>
<div class="line"><a id="l03368" name="l03368"></a><span class="lineno"> 3368</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::const_reference StlContainerReference;</div>
<div class="line"><a id="l03369" name="l03369"></a><span class="lineno"> 3369</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> StlContainer::value_type Element;</div>
<div class="line"><a id="l03370" name="l03370"></a><span class="lineno"> 3370</span> </div>
<div class="line"><a id="l03371" name="l03371"></a><span class="lineno"> 3371</span>  <span class="comment">// Constructs the matcher from a sequence of element values or</span></div>
<div class="line"><a id="l03372" name="l03372"></a><span class="lineno"> 3372</span>  <span class="comment">// element matchers.</span></div>
<div class="line"><a id="l03373" name="l03373"></a><span class="lineno"> 3373</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InputIter&gt;</div>
<div class="line"><a id="l03374" name="l03374"></a><span class="lineno"> 3374</span>  ElementsAreMatcherImpl(InputIter first, InputIter last) {</div>
<div class="line"><a id="l03375" name="l03375"></a><span class="lineno"> 3375</span>    <span class="keywordflow">while</span> (first != last) {</div>
<div class="line"><a id="l03376" name="l03376"></a><span class="lineno"> 3376</span>      matchers_.push_back(MatcherCast&lt;const Element&amp;&gt;(*first++));</div>
<div class="line"><a id="l03377" name="l03377"></a><span class="lineno"> 3377</span>    }</div>
<div class="line"><a id="l03378" name="l03378"></a><span class="lineno"> 3378</span>  }</div>
<div class="line"><a id="l03379" name="l03379"></a><span class="lineno"> 3379</span> </div>
<div class="line"><a id="l03380" name="l03380"></a><span class="lineno"> 3380</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l03381" name="l03381"></a><span class="lineno"> 3381</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03382" name="l03382"></a><span class="lineno"> 3382</span>    <span class="keywordflow">if</span> (count() == 0) {</div>
<div class="line"><a id="l03383" name="l03383"></a><span class="lineno"> 3383</span>      *os &lt;&lt; <span class="stringliteral">&quot;is empty&quot;</span>;</div>
<div class="line"><a id="l03384" name="l03384"></a><span class="lineno"> 3384</span>    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (count() == 1) {</div>
<div class="line"><a id="l03385" name="l03385"></a><span class="lineno"> 3385</span>      *os &lt;&lt; <span class="stringliteral">&quot;has 1 element that &quot;</span>;</div>
<div class="line"><a id="l03386" name="l03386"></a><span class="lineno"> 3386</span>      matchers_[0].DescribeTo(os);</div>
<div class="line"><a id="l03387" name="l03387"></a><span class="lineno"> 3387</span>    } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l03388" name="l03388"></a><span class="lineno"> 3388</span>      *os &lt;&lt; <span class="stringliteral">&quot;has &quot;</span> &lt;&lt; Elements(count()) &lt;&lt; <span class="stringliteral">&quot; where\n&quot;</span>;</div>
<div class="line"><a id="l03389" name="l03389"></a><span class="lineno"> 3389</span>      <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i != count(); ++i) {</div>
<div class="line"><a id="l03390" name="l03390"></a><span class="lineno"> 3390</span>        *os &lt;&lt; <span class="stringliteral">&quot;element #&quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l03391" name="l03391"></a><span class="lineno"> 3391</span>        matchers_[i].DescribeTo(os);</div>
<div class="line"><a id="l03392" name="l03392"></a><span class="lineno"> 3392</span>        <span class="keywordflow">if</span> (i + 1 &lt; count()) {</div>
<div class="line"><a id="l03393" name="l03393"></a><span class="lineno"> 3393</span>          *os &lt;&lt; <span class="stringliteral">&quot;,\n&quot;</span>;</div>
<div class="line"><a id="l03394" name="l03394"></a><span class="lineno"> 3394</span>        }</div>
<div class="line"><a id="l03395" name="l03395"></a><span class="lineno"> 3395</span>      }</div>
<div class="line"><a id="l03396" name="l03396"></a><span class="lineno"> 3396</span>    }</div>
<div class="line"><a id="l03397" name="l03397"></a><span class="lineno"> 3397</span>  }</div>
<div class="line"><a id="l03398" name="l03398"></a><span class="lineno"> 3398</span> </div>
<div class="line"><a id="l03399" name="l03399"></a><span class="lineno"> 3399</span>  <span class="comment">// Describes what the negation of this matcher does.</span></div>
<div class="line"><a id="l03400" name="l03400"></a><span class="lineno"> 3400</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03401" name="l03401"></a><span class="lineno"> 3401</span>    <span class="keywordflow">if</span> (count() == 0) {</div>
<div class="line"><a id="l03402" name="l03402"></a><span class="lineno"> 3402</span>      *os &lt;&lt; <span class="stringliteral">&quot;isn&#39;t empty&quot;</span>;</div>
<div class="line"><a id="l03403" name="l03403"></a><span class="lineno"> 3403</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l03404" name="l03404"></a><span class="lineno"> 3404</span>    }</div>
<div class="line"><a id="l03405" name="l03405"></a><span class="lineno"> 3405</span> </div>
<div class="line"><a id="l03406" name="l03406"></a><span class="lineno"> 3406</span>    *os &lt;&lt; <span class="stringliteral">&quot;doesn&#39;t have &quot;</span> &lt;&lt; Elements(count()) &lt;&lt; <span class="stringliteral">&quot;, or\n&quot;</span>;</div>
<div class="line"><a id="l03407" name="l03407"></a><span class="lineno"> 3407</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i != count(); ++i) {</div>
<div class="line"><a id="l03408" name="l03408"></a><span class="lineno"> 3408</span>      *os &lt;&lt; <span class="stringliteral">&quot;element #&quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l03409" name="l03409"></a><span class="lineno"> 3409</span>      matchers_[i].DescribeNegationTo(os);</div>
<div class="line"><a id="l03410" name="l03410"></a><span class="lineno"> 3410</span>      <span class="keywordflow">if</span> (i + 1 &lt; count()) {</div>
<div class="line"><a id="l03411" name="l03411"></a><span class="lineno"> 3411</span>        *os &lt;&lt; <span class="stringliteral">&quot;, or\n&quot;</span>;</div>
<div class="line"><a id="l03412" name="l03412"></a><span class="lineno"> 3412</span>      }</div>
<div class="line"><a id="l03413" name="l03413"></a><span class="lineno"> 3413</span>    }</div>
<div class="line"><a id="l03414" name="l03414"></a><span class="lineno"> 3414</span>  }</div>
<div class="line"><a id="l03415" name="l03415"></a><span class="lineno"> 3415</span> </div>
<div class="line"><a id="l03416" name="l03416"></a><span class="lineno"> 3416</span>  <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l03417" name="l03417"></a><span class="lineno"> 3417</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03418" name="l03418"></a><span class="lineno"> 3418</span>    <span class="comment">// To work with stream-like &quot;containers&quot;, we must only walk</span></div>
<div class="line"><a id="l03419" name="l03419"></a><span class="lineno"> 3419</span>    <span class="comment">// through the elements in one pass.</span></div>
<div class="line"><a id="l03420" name="l03420"></a><span class="lineno"> 3420</span> </div>
<div class="line"><a id="l03421" name="l03421"></a><span class="lineno"> 3421</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> listener_interested = listener-&gt;IsInterested();</div>
<div class="line"><a id="l03422" name="l03422"></a><span class="lineno"> 3422</span> </div>
<div class="line"><a id="l03423" name="l03423"></a><span class="lineno"> 3423</span>    <span class="comment">// explanations[i] is the explanation of the element at index i.</span></div>
<div class="line"><a id="l03424" name="l03424"></a><span class="lineno"> 3424</span>    ::std::vector&lt;std::string&gt; explanations(count());</div>
<div class="line"><a id="l03425" name="l03425"></a><span class="lineno"> 3425</span>    StlContainerReference stl_container = View::ConstReference(container);</div>
<div class="line"><a id="l03426" name="l03426"></a><span class="lineno"> 3426</span>    <span class="keyword">auto</span> it = stl_container.begin();</div>
<div class="line"><a id="l03427" name="l03427"></a><span class="lineno"> 3427</span>    <span class="keywordtype">size_t</span> exam_pos = 0;</div>
<div class="line"><a id="l03428" name="l03428"></a><span class="lineno"> 3428</span>    <span class="keywordtype">bool</span> mismatch_found = <span class="keyword">false</span>;  <span class="comment">// Have we found a mismatched element yet?</span></div>
<div class="line"><a id="l03429" name="l03429"></a><span class="lineno"> 3429</span> </div>
<div class="line"><a id="l03430" name="l03430"></a><span class="lineno"> 3430</span>    <span class="comment">// Go through the elements and matchers in pairs, until we reach</span></div>
<div class="line"><a id="l03431" name="l03431"></a><span class="lineno"> 3431</span>    <span class="comment">// the end of either the elements or the matchers, or until we find a</span></div>
<div class="line"><a id="l03432" name="l03432"></a><span class="lineno"> 3432</span>    <span class="comment">// mismatch.</span></div>
<div class="line"><a id="l03433" name="l03433"></a><span class="lineno"> 3433</span>    <span class="keywordflow">for</span> (; it != stl_container.end() &amp;&amp; exam_pos != count(); ++it, ++exam_pos) {</div>
<div class="line"><a id="l03434" name="l03434"></a><span class="lineno"> 3434</span>      <span class="keywordtype">bool</span> match;  <span class="comment">// Does the current element match the current matcher?</span></div>
<div class="line"><a id="l03435" name="l03435"></a><span class="lineno"> 3435</span>      <span class="keywordflow">if</span> (listener_interested) {</div>
<div class="line"><a id="l03436" name="l03436"></a><span class="lineno"> 3436</span>        StringMatchResultListener s;</div>
<div class="line"><a id="l03437" name="l03437"></a><span class="lineno"> 3437</span>        match = matchers_[exam_pos].MatchAndExplain(*it, &amp;s);</div>
<div class="line"><a id="l03438" name="l03438"></a><span class="lineno"> 3438</span>        explanations[exam_pos] = s.str();</div>
<div class="line"><a id="l03439" name="l03439"></a><span class="lineno"> 3439</span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l03440" name="l03440"></a><span class="lineno"> 3440</span>        match = matchers_[exam_pos].Matches(*it);</div>
<div class="line"><a id="l03441" name="l03441"></a><span class="lineno"> 3441</span>      }</div>
<div class="line"><a id="l03442" name="l03442"></a><span class="lineno"> 3442</span> </div>
<div class="line"><a id="l03443" name="l03443"></a><span class="lineno"> 3443</span>      <span class="keywordflow">if</span> (!match) {</div>
<div class="line"><a id="l03444" name="l03444"></a><span class="lineno"> 3444</span>        mismatch_found = <span class="keyword">true</span>;</div>
<div class="line"><a id="l03445" name="l03445"></a><span class="lineno"> 3445</span>        <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l03446" name="l03446"></a><span class="lineno"> 3446</span>      }</div>
<div class="line"><a id="l03447" name="l03447"></a><span class="lineno"> 3447</span>    }</div>
<div class="line"><a id="l03448" name="l03448"></a><span class="lineno"> 3448</span>    <span class="comment">// If mismatch_found is true, &#39;exam_pos&#39; is the index of the mismatch.</span></div>
<div class="line"><a id="l03449" name="l03449"></a><span class="lineno"> 3449</span> </div>
<div class="line"><a id="l03450" name="l03450"></a><span class="lineno"> 3450</span>    <span class="comment">// Find how many elements the actual container has.  We avoid</span></div>
<div class="line"><a id="l03451" name="l03451"></a><span class="lineno"> 3451</span>    <span class="comment">// calling size() s.t. this code works for stream-like &quot;containers&quot;</span></div>
<div class="line"><a id="l03452" name="l03452"></a><span class="lineno"> 3452</span>    <span class="comment">// that don&#39;t define size().</span></div>
<div class="line"><a id="l03453" name="l03453"></a><span class="lineno"> 3453</span>    <span class="keywordtype">size_t</span> actual_count = exam_pos;</div>
<div class="line"><a id="l03454" name="l03454"></a><span class="lineno"> 3454</span>    <span class="keywordflow">for</span> (; it != stl_container.end(); ++it) {</div>
<div class="line"><a id="l03455" name="l03455"></a><span class="lineno"> 3455</span>      ++actual_count;</div>
<div class="line"><a id="l03456" name="l03456"></a><span class="lineno"> 3456</span>    }</div>
<div class="line"><a id="l03457" name="l03457"></a><span class="lineno"> 3457</span> </div>
<div class="line"><a id="l03458" name="l03458"></a><span class="lineno"> 3458</span>    <span class="keywordflow">if</span> (actual_count != count()) {</div>
<div class="line"><a id="l03459" name="l03459"></a><span class="lineno"> 3459</span>      <span class="comment">// The element count doesn&#39;t match.  If the container is empty,</span></div>
<div class="line"><a id="l03460" name="l03460"></a><span class="lineno"> 3460</span>      <span class="comment">// there&#39;s no need to explain anything as Google Mock already</span></div>
<div class="line"><a id="l03461" name="l03461"></a><span class="lineno"> 3461</span>      <span class="comment">// prints the empty container.  Otherwise we just need to show</span></div>
<div class="line"><a id="l03462" name="l03462"></a><span class="lineno"> 3462</span>      <span class="comment">// how many elements there actually are.</span></div>
<div class="line"><a id="l03463" name="l03463"></a><span class="lineno"> 3463</span>      <span class="keywordflow">if</span> (listener_interested &amp;&amp; (actual_count != 0)) {</div>
<div class="line"><a id="l03464" name="l03464"></a><span class="lineno"> 3464</span>        *listener &lt;&lt; <span class="stringliteral">&quot;which has &quot;</span> &lt;&lt; Elements(actual_count);</div>
<div class="line"><a id="l03465" name="l03465"></a><span class="lineno"> 3465</span>      }</div>
<div class="line"><a id="l03466" name="l03466"></a><span class="lineno"> 3466</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03467" name="l03467"></a><span class="lineno"> 3467</span>    }</div>
<div class="line"><a id="l03468" name="l03468"></a><span class="lineno"> 3468</span> </div>
<div class="line"><a id="l03469" name="l03469"></a><span class="lineno"> 3469</span>    <span class="keywordflow">if</span> (mismatch_found) {</div>
<div class="line"><a id="l03470" name="l03470"></a><span class="lineno"> 3470</span>      <span class="comment">// The element count matches, but the exam_pos-th element doesn&#39;t match.</span></div>
<div class="line"><a id="l03471" name="l03471"></a><span class="lineno"> 3471</span>      <span class="keywordflow">if</span> (listener_interested) {</div>
<div class="line"><a id="l03472" name="l03472"></a><span class="lineno"> 3472</span>        *listener &lt;&lt; <span class="stringliteral">&quot;whose element #&quot;</span> &lt;&lt; exam_pos &lt;&lt; <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>;</div>
<div class="line"><a id="l03473" name="l03473"></a><span class="lineno"> 3473</span>        PrintIfNotEmpty(explanations[exam_pos], listener-&gt;stream());</div>
<div class="line"><a id="l03474" name="l03474"></a><span class="lineno"> 3474</span>      }</div>
<div class="line"><a id="l03475" name="l03475"></a><span class="lineno"> 3475</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03476" name="l03476"></a><span class="lineno"> 3476</span>    }</div>
<div class="line"><a id="l03477" name="l03477"></a><span class="lineno"> 3477</span> </div>
<div class="line"><a id="l03478" name="l03478"></a><span class="lineno"> 3478</span>    <span class="comment">// Every element matches its expectation.  We need to explain why</span></div>
<div class="line"><a id="l03479" name="l03479"></a><span class="lineno"> 3479</span>    <span class="comment">// (the obvious ones can be skipped).</span></div>
<div class="line"><a id="l03480" name="l03480"></a><span class="lineno"> 3480</span>    <span class="keywordflow">if</span> (listener_interested) {</div>
<div class="line"><a id="l03481" name="l03481"></a><span class="lineno"> 3481</span>      <span class="keywordtype">bool</span> reason_printed = <span class="keyword">false</span>;</div>
<div class="line"><a id="l03482" name="l03482"></a><span class="lineno"> 3482</span>      <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i != count(); ++i) {</div>
<div class="line"><a id="l03483" name="l03483"></a><span class="lineno"> 3483</span>        <span class="keyword">const</span> std::string&amp; s = explanations[i];</div>
<div class="line"><a id="l03484" name="l03484"></a><span class="lineno"> 3484</span>        <span class="keywordflow">if</span> (!s.empty()) {</div>
<div class="line"><a id="l03485" name="l03485"></a><span class="lineno"> 3485</span>          <span class="keywordflow">if</span> (reason_printed) {</div>
<div class="line"><a id="l03486" name="l03486"></a><span class="lineno"> 3486</span>            *listener &lt;&lt; <span class="stringliteral">&quot;,\nand &quot;</span>;</div>
<div class="line"><a id="l03487" name="l03487"></a><span class="lineno"> 3487</span>          }</div>
<div class="line"><a id="l03488" name="l03488"></a><span class="lineno"> 3488</span>          *listener &lt;&lt; <span class="stringliteral">&quot;whose element #&quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot; matches, &quot;</span> &lt;&lt; s;</div>
<div class="line"><a id="l03489" name="l03489"></a><span class="lineno"> 3489</span>          reason_printed = <span class="keyword">true</span>;</div>
<div class="line"><a id="l03490" name="l03490"></a><span class="lineno"> 3490</span>        }</div>
<div class="line"><a id="l03491" name="l03491"></a><span class="lineno"> 3491</span>      }</div>
<div class="line"><a id="l03492" name="l03492"></a><span class="lineno"> 3492</span>    }</div>
<div class="line"><a id="l03493" name="l03493"></a><span class="lineno"> 3493</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l03494" name="l03494"></a><span class="lineno"> 3494</span>  }</div>
<div class="line"><a id="l03495" name="l03495"></a><span class="lineno"> 3495</span> </div>
<div class="line"><a id="l03496" name="l03496"></a><span class="lineno"> 3496</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03497" name="l03497"></a><span class="lineno"> 3497</span>  <span class="keyword">static</span> Message Elements(<span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l03498" name="l03498"></a><span class="lineno"> 3498</span>    <span class="keywordflow">return</span> Message() &lt;&lt; count &lt;&lt; (count == 1 ? <span class="stringliteral">&quot; element&quot;</span> : <span class="stringliteral">&quot; elements&quot;</span>);</div>
<div class="line"><a id="l03499" name="l03499"></a><span class="lineno"> 3499</span>  }</div>
<div class="line"><a id="l03500" name="l03500"></a><span class="lineno"> 3500</span> </div>
<div class="line"><a id="l03501" name="l03501"></a><span class="lineno"> 3501</span>  <span class="keywordtype">size_t</span> count()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> matchers_.size(); }</div>
<div class="line"><a id="l03502" name="l03502"></a><span class="lineno"> 3502</span> </div>
<div class="line"><a id="l03503" name="l03503"></a><span class="lineno"> 3503</span>  ::std::vector&lt;Matcher&lt;const Element&amp;&gt;&gt; matchers_;</div>
<div class="line"><a id="l03504" name="l03504"></a><span class="lineno"> 3504</span>};</div>
<div class="line"><a id="l03505" name="l03505"></a><span class="lineno"> 3505</span> </div>
<div class="line"><a id="l03506" name="l03506"></a><span class="lineno"> 3506</span><span class="comment">// Connectivity matrix of (elements X matchers), in element-major order.</span></div>
<div class="line"><a id="l03507" name="l03507"></a><span class="lineno"> 3507</span><span class="comment">// Initially, there are no edges.</span></div>
<div class="line"><a id="l03508" name="l03508"></a><span class="lineno"> 3508</span><span class="comment">// Use NextGraph() to iterate over all possible edge configurations.</span></div>
<div class="line"><a id="l03509" name="l03509"></a><span class="lineno"> 3509</span><span class="comment">// Use Randomize() to generate a random edge configuration.</span></div>
<div class="line"><a id="l03510" name="l03510"></a><span class="lineno"> 3510</span><span class="keyword">class </span>GTEST_API_ MatchMatrix {</div>
<div class="line"><a id="l03511" name="l03511"></a><span class="lineno"> 3511</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03512" name="l03512"></a><span class="lineno"> 3512</span>  MatchMatrix(<span class="keywordtype">size_t</span> num_elements, <span class="keywordtype">size_t</span> num_matchers)</div>
<div class="line"><a id="l03513" name="l03513"></a><span class="lineno"> 3513</span>      : num_elements_(num_elements),</div>
<div class="line"><a id="l03514" name="l03514"></a><span class="lineno"> 3514</span>        num_matchers_(num_matchers),</div>
<div class="line"><a id="l03515" name="l03515"></a><span class="lineno"> 3515</span>        matched_(num_elements_ * num_matchers_, 0) {}</div>
<div class="line"><a id="l03516" name="l03516"></a><span class="lineno"> 3516</span> </div>
<div class="line"><a id="l03517" name="l03517"></a><span class="lineno"> 3517</span>  <span class="keywordtype">size_t</span> LhsSize()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> num_elements_; }</div>
<div class="line"><a id="l03518" name="l03518"></a><span class="lineno"> 3518</span>  <span class="keywordtype">size_t</span> RhsSize()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> num_matchers_; }</div>
<div class="line"><a id="l03519" name="l03519"></a><span class="lineno"> 3519</span>  <span class="keywordtype">bool</span> HasEdge(<span class="keywordtype">size_t</span> ilhs, <span class="keywordtype">size_t</span> irhs)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03520" name="l03520"></a><span class="lineno"> 3520</span>    <span class="keywordflow">return</span> matched_[SpaceIndex(ilhs, irhs)] == 1;</div>
<div class="line"><a id="l03521" name="l03521"></a><span class="lineno"> 3521</span>  }</div>
<div class="line"><a id="l03522" name="l03522"></a><span class="lineno"> 3522</span>  <span class="keywordtype">void</span> SetEdge(<span class="keywordtype">size_t</span> ilhs, <span class="keywordtype">size_t</span> irhs, <span class="keywordtype">bool</span> b) {</div>
<div class="line"><a id="l03523" name="l03523"></a><span class="lineno"> 3523</span>    matched_[SpaceIndex(ilhs, irhs)] = b ? 1 : 0;</div>
<div class="line"><a id="l03524" name="l03524"></a><span class="lineno"> 3524</span>  }</div>
<div class="line"><a id="l03525" name="l03525"></a><span class="lineno"> 3525</span> </div>
<div class="line"><a id="l03526" name="l03526"></a><span class="lineno"> 3526</span>  <span class="comment">// Treating the connectivity matrix as a (LhsSize()*RhsSize())-bit number,</span></div>
<div class="line"><a id="l03527" name="l03527"></a><span class="lineno"> 3527</span>  <span class="comment">// adds 1 to that number; returns false if incrementing the graph left it</span></div>
<div class="line"><a id="l03528" name="l03528"></a><span class="lineno"> 3528</span>  <span class="comment">// empty.</span></div>
<div class="line"><a id="l03529" name="l03529"></a><span class="lineno"> 3529</span>  <span class="keywordtype">bool</span> NextGraph();</div>
<div class="line"><a id="l03530" name="l03530"></a><span class="lineno"> 3530</span> </div>
<div class="line"><a id="l03531" name="l03531"></a><span class="lineno"> 3531</span>  <span class="keywordtype">void</span> Randomize();</div>
<div class="line"><a id="l03532" name="l03532"></a><span class="lineno"> 3532</span> </div>
<div class="line"><a id="l03533" name="l03533"></a><span class="lineno"> 3533</span>  std::string DebugString() <span class="keyword">const</span>;</div>
<div class="line"><a id="l03534" name="l03534"></a><span class="lineno"> 3534</span> </div>
<div class="line"><a id="l03535" name="l03535"></a><span class="lineno"> 3535</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03536" name="l03536"></a><span class="lineno"> 3536</span>  <span class="keywordtype">size_t</span> SpaceIndex(<span class="keywordtype">size_t</span> ilhs, <span class="keywordtype">size_t</span> irhs)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03537" name="l03537"></a><span class="lineno"> 3537</span>    <span class="keywordflow">return</span> ilhs * num_matchers_ + irhs;</div>
<div class="line"><a id="l03538" name="l03538"></a><span class="lineno"> 3538</span>  }</div>
<div class="line"><a id="l03539" name="l03539"></a><span class="lineno"> 3539</span> </div>
<div class="line"><a id="l03540" name="l03540"></a><span class="lineno"> 3540</span>  <span class="keywordtype">size_t</span> num_elements_;</div>
<div class="line"><a id="l03541" name="l03541"></a><span class="lineno"> 3541</span>  <span class="keywordtype">size_t</span> num_matchers_;</div>
<div class="line"><a id="l03542" name="l03542"></a><span class="lineno"> 3542</span> </div>
<div class="line"><a id="l03543" name="l03543"></a><span class="lineno"> 3543</span>  <span class="comment">// Each element is a char interpreted as bool. They are stored as a</span></div>
<div class="line"><a id="l03544" name="l03544"></a><span class="lineno"> 3544</span>  <span class="comment">// flattened array in lhs-major order, use &#39;SpaceIndex()&#39; to translate</span></div>
<div class="line"><a id="l03545" name="l03545"></a><span class="lineno"> 3545</span>  <span class="comment">// a (ilhs, irhs) matrix coordinate into an offset.</span></div>
<div class="line"><a id="l03546" name="l03546"></a><span class="lineno"> 3546</span>  ::std::vector&lt;char&gt; matched_;</div>
<div class="line"><a id="l03547" name="l03547"></a><span class="lineno"> 3547</span>};</div>
<div class="line"><a id="l03548" name="l03548"></a><span class="lineno"> 3548</span> </div>
<div class="line"><a id="l03549" name="l03549"></a><span class="lineno"> 3549</span>typedef ::std::pair&lt;size_t, size_t&gt; ElementMatcherPair;</div>
<div class="line"><a id="l03550" name="l03550"></a><span class="lineno"> 3550</span>typedef ::std::vector&lt;ElementMatcherPair&gt; ElementMatcherPairs;</div>
<div class="line"><a id="l03551" name="l03551"></a><span class="lineno"> 3551</span> </div>
<div class="line"><a id="l03552" name="l03552"></a><span class="lineno"> 3552</span><span class="comment">// Returns a maximum bipartite matching for the specified graph &#39;g&#39;.</span></div>
<div class="line"><a id="l03553" name="l03553"></a><span class="lineno"> 3553</span><span class="comment">// The matching is represented as a vector of {element, matcher} pairs.</span></div>
<div class="line"><a id="l03554" name="l03554"></a><span class="lineno"> 3554</span>GTEST_API_ ElementMatcherPairs FindMaxBipartiteMatching(<span class="keyword">const</span> MatchMatrix&amp; g);</div>
<div class="line"><a id="l03555" name="l03555"></a><span class="lineno"> 3555</span> </div>
<div class="line"><a id="l03556" name="l03556"></a><span class="lineno"> 3556</span><span class="keyword">struct </span>UnorderedMatcherRequire {</div>
<div class="line"><a id="l03557" name="l03557"></a><span class="lineno"> 3557</span>  <span class="keyword">enum</span> Flags {</div>
<div class="line"><a id="l03558" name="l03558"></a><span class="lineno"> 3558</span>    Superset = 1 &lt;&lt; 0,</div>
<div class="line"><a id="l03559" name="l03559"></a><span class="lineno"> 3559</span>    Subset = 1 &lt;&lt; 1,</div>
<div class="line"><a id="l03560" name="l03560"></a><span class="lineno"> 3560</span>    ExactMatch = Superset | Subset,</div>
<div class="line"><a id="l03561" name="l03561"></a><span class="lineno"> 3561</span>  };</div>
<div class="line"><a id="l03562" name="l03562"></a><span class="lineno"> 3562</span>};</div>
<div class="line"><a id="l03563" name="l03563"></a><span class="lineno"> 3563</span> </div>
<div class="line"><a id="l03564" name="l03564"></a><span class="lineno"> 3564</span><span class="comment">// Untyped base class for implementing UnorderedElementsAre.  By</span></div>
<div class="line"><a id="l03565" name="l03565"></a><span class="lineno"> 3565</span><span class="comment">// putting logic that&#39;s not specific to the element type here, we</span></div>
<div class="line"><a id="l03566" name="l03566"></a><span class="lineno"> 3566</span><span class="comment">// reduce binary bloat and increase compilation speed.</span></div>
<div class="line"><a id="l03567" name="l03567"></a><span class="lineno"> 3567</span><span class="keyword">class </span>GTEST_API_ UnorderedElementsAreMatcherImplBase {</div>
<div class="line"><a id="l03568" name="l03568"></a><span class="lineno"> 3568</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l03569" name="l03569"></a><span class="lineno"> 3569</span>  <span class="keyword">explicit</span> UnorderedElementsAreMatcherImplBase(</div>
<div class="line"><a id="l03570" name="l03570"></a><span class="lineno"> 3570</span>      UnorderedMatcherRequire::Flags matcher_flags)</div>
<div class="line"><a id="l03571" name="l03571"></a><span class="lineno"> 3571</span>      : match_flags_(matcher_flags) {}</div>
<div class="line"><a id="l03572" name="l03572"></a><span class="lineno"> 3572</span> </div>
<div class="line"><a id="l03573" name="l03573"></a><span class="lineno"> 3573</span>  <span class="comment">// A vector of matcher describers, one for each element matcher.</span></div>
<div class="line"><a id="l03574" name="l03574"></a><span class="lineno"> 3574</span>  <span class="comment">// Does not own the describers (and thus can be used only when the</span></div>
<div class="line"><a id="l03575" name="l03575"></a><span class="lineno"> 3575</span>  <span class="comment">// element matchers are alive).</span></div>
<div class="line"><a id="l03576" name="l03576"></a><span class="lineno"> 3576</span>  typedef ::std::vector&lt;const MatcherDescriberInterface*&gt; MatcherDescriberVec;</div>
<div class="line"><a id="l03577" name="l03577"></a><span class="lineno"> 3577</span> </div>
<div class="line"><a id="l03578" name="l03578"></a><span class="lineno"> 3578</span>  <span class="comment">// Describes this UnorderedElementsAre matcher.</span></div>
<div class="line"><a id="l03579" name="l03579"></a><span class="lineno"> 3579</span>  <span class="keywordtype">void</span> DescribeToImpl(::std::ostream* os) <span class="keyword">const</span>;</div>
<div class="line"><a id="l03580" name="l03580"></a><span class="lineno"> 3580</span> </div>
<div class="line"><a id="l03581" name="l03581"></a><span class="lineno"> 3581</span>  <span class="comment">// Describes the negation of this UnorderedElementsAre matcher.</span></div>
<div class="line"><a id="l03582" name="l03582"></a><span class="lineno"> 3582</span>  <span class="keywordtype">void</span> DescribeNegationToImpl(::std::ostream* os) <span class="keyword">const</span>;</div>
<div class="line"><a id="l03583" name="l03583"></a><span class="lineno"> 3583</span> </div>
<div class="line"><a id="l03584" name="l03584"></a><span class="lineno"> 3584</span>  <span class="keywordtype">bool</span> VerifyMatchMatrix(const ::std::vector&lt;std::string&gt;&amp; element_printouts,</div>
<div class="line"><a id="l03585" name="l03585"></a><span class="lineno"> 3585</span>                         <span class="keyword">const</span> MatchMatrix&amp; matrix,</div>
<div class="line"><a id="l03586" name="l03586"></a><span class="lineno"> 3586</span>                         MatchResultListener* listener) <span class="keyword">const</span>;</div>
<div class="line"><a id="l03587" name="l03587"></a><span class="lineno"> 3587</span> </div>
<div class="line"><a id="l03588" name="l03588"></a><span class="lineno"> 3588</span>  <span class="keywordtype">bool</span> FindPairing(<span class="keyword">const</span> MatchMatrix&amp; matrix,</div>
<div class="line"><a id="l03589" name="l03589"></a><span class="lineno"> 3589</span>                   MatchResultListener* listener) <span class="keyword">const</span>;</div>
<div class="line"><a id="l03590" name="l03590"></a><span class="lineno"> 3590</span> </div>
<div class="line"><a id="l03591" name="l03591"></a><span class="lineno"> 3591</span>  MatcherDescriberVec&amp; matcher_describers() { <span class="keywordflow">return</span> matcher_describers_; }</div>
<div class="line"><a id="l03592" name="l03592"></a><span class="lineno"> 3592</span> </div>
<div class="line"><a id="l03593" name="l03593"></a><span class="lineno"> 3593</span>  <span class="keyword">static</span> Message Elements(<span class="keywordtype">size_t</span> n) {</div>
<div class="line"><a id="l03594" name="l03594"></a><span class="lineno"> 3594</span>    <span class="keywordflow">return</span> Message() &lt;&lt; n &lt;&lt; <span class="stringliteral">&quot; element&quot;</span> &lt;&lt; (n == 1 ? <span class="stringliteral">&quot;&quot;</span> : <span class="stringliteral">&quot;s&quot;</span>);</div>
<div class="line"><a id="l03595" name="l03595"></a><span class="lineno"> 3595</span>  }</div>
<div class="line"><a id="l03596" name="l03596"></a><span class="lineno"> 3596</span> </div>
<div class="line"><a id="l03597" name="l03597"></a><span class="lineno"> 3597</span>  UnorderedMatcherRequire::Flags match_flags()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> match_flags_; }</div>
<div class="line"><a id="l03598" name="l03598"></a><span class="lineno"> 3598</span> </div>
<div class="line"><a id="l03599" name="l03599"></a><span class="lineno"> 3599</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03600" name="l03600"></a><span class="lineno"> 3600</span>  UnorderedMatcherRequire::Flags match_flags_;</div>
<div class="line"><a id="l03601" name="l03601"></a><span class="lineno"> 3601</span>  MatcherDescriberVec matcher_describers_;</div>
<div class="line"><a id="l03602" name="l03602"></a><span class="lineno"> 3602</span>};</div>
<div class="line"><a id="l03603" name="l03603"></a><span class="lineno"> 3603</span> </div>
<div class="line"><a id="l03604" name="l03604"></a><span class="lineno"> 3604</span><span class="comment">// Implements UnorderedElementsAre, UnorderedElementsAreArray, IsSubsetOf, and</span></div>
<div class="line"><a id="l03605" name="l03605"></a><span class="lineno"> 3605</span><span class="comment">// IsSupersetOf.</span></div>
<div class="line"><a id="l03606" name="l03606"></a><span class="lineno"> 3606</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03607" name="l03607"></a><span class="lineno"> 3607</span><span class="keyword">class </span>UnorderedElementsAreMatcherImpl</div>
<div class="line"><a id="l03608" name="l03608"></a><span class="lineno"> 3608</span>    : <span class="keyword">public</span> MatcherInterface&lt;Container&gt;,</div>
<div class="line"><a id="l03609" name="l03609"></a><span class="lineno"> 3609</span>      <span class="keyword">public</span> UnorderedElementsAreMatcherImplBase {</div>
<div class="line"><a id="l03610" name="l03610"></a><span class="lineno"> 3610</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03611" name="l03611"></a><span class="lineno"> 3611</span>  <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;</div>
<div class="line"><a id="l03612" name="l03612"></a><span class="lineno"> 3612</span>  <span class="keyword">typedef</span> internal::StlContainerView&lt;RawContainer&gt; View;</div>
<div class="line"><a id="l03613" name="l03613"></a><span class="lineno"> 3613</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::type StlContainer;</div>
<div class="line"><a id="l03614" name="l03614"></a><span class="lineno"> 3614</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> View::const_reference StlContainerReference;</div>
<div class="line"><a id="l03615" name="l03615"></a><span class="lineno"> 3615</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> StlContainer::value_type Element;</div>
<div class="line"><a id="l03616" name="l03616"></a><span class="lineno"> 3616</span> </div>
<div class="line"><a id="l03617" name="l03617"></a><span class="lineno"> 3617</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InputIter&gt;</div>
<div class="line"><a id="l03618" name="l03618"></a><span class="lineno"> 3618</span>  UnorderedElementsAreMatcherImpl(UnorderedMatcherRequire::Flags matcher_flags,</div>
<div class="line"><a id="l03619" name="l03619"></a><span class="lineno"> 3619</span>                                  InputIter first, InputIter last)</div>
<div class="line"><a id="l03620" name="l03620"></a><span class="lineno"> 3620</span>      : UnorderedElementsAreMatcherImplBase(matcher_flags) {</div>
<div class="line"><a id="l03621" name="l03621"></a><span class="lineno"> 3621</span>    <span class="keywordflow">for</span> (; first != last; ++first) {</div>
<div class="line"><a id="l03622" name="l03622"></a><span class="lineno"> 3622</span>      matchers_.push_back(MatcherCast&lt;const Element&amp;&gt;(*first));</div>
<div class="line"><a id="l03623" name="l03623"></a><span class="lineno"> 3623</span>    }</div>
<div class="line"><a id="l03624" name="l03624"></a><span class="lineno"> 3624</span>    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; m : matchers_) {</div>
<div class="line"><a id="l03625" name="l03625"></a><span class="lineno"> 3625</span>      matcher_describers().push_back(m.GetDescriber());</div>
<div class="line"><a id="l03626" name="l03626"></a><span class="lineno"> 3626</span>    }</div>
<div class="line"><a id="l03627" name="l03627"></a><span class="lineno"> 3627</span>  }</div>
<div class="line"><a id="l03628" name="l03628"></a><span class="lineno"> 3628</span> </div>
<div class="line"><a id="l03629" name="l03629"></a><span class="lineno"> 3629</span>  <span class="comment">// Describes what this matcher does.</span></div>
<div class="line"><a id="l03630" name="l03630"></a><span class="lineno"> 3630</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03631" name="l03631"></a><span class="lineno"> 3631</span>    <span class="keywordflow">return</span> UnorderedElementsAreMatcherImplBase::DescribeToImpl(os);</div>
<div class="line"><a id="l03632" name="l03632"></a><span class="lineno"> 3632</span>  }</div>
<div class="line"><a id="l03633" name="l03633"></a><span class="lineno"> 3633</span> </div>
<div class="line"><a id="l03634" name="l03634"></a><span class="lineno"> 3634</span>  <span class="comment">// Describes what the negation of this matcher does.</span></div>
<div class="line"><a id="l03635" name="l03635"></a><span class="lineno"> 3635</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03636" name="l03636"></a><span class="lineno"> 3636</span>    <span class="keywordflow">return</span> UnorderedElementsAreMatcherImplBase::DescribeNegationToImpl(os);</div>
<div class="line"><a id="l03637" name="l03637"></a><span class="lineno"> 3637</span>  }</div>
<div class="line"><a id="l03638" name="l03638"></a><span class="lineno"> 3638</span> </div>
<div class="line"><a id="l03639" name="l03639"></a><span class="lineno"> 3639</span>  <span class="keywordtype">bool</span> MatchAndExplain(Container container,</div>
<div class="line"><a id="l03640" name="l03640"></a><span class="lineno"> 3640</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03641" name="l03641"></a><span class="lineno"> 3641</span>    StlContainerReference stl_container = View::ConstReference(container);</div>
<div class="line"><a id="l03642" name="l03642"></a><span class="lineno"> 3642</span>    ::std::vector&lt;std::string&gt; element_printouts;</div>
<div class="line"><a id="l03643" name="l03643"></a><span class="lineno"> 3643</span>    MatchMatrix matrix =</div>
<div class="line"><a id="l03644" name="l03644"></a><span class="lineno"> 3644</span>        AnalyzeElements(stl_container.begin(), stl_container.end(),</div>
<div class="line"><a id="l03645" name="l03645"></a><span class="lineno"> 3645</span>                        &amp;element_printouts, listener);</div>
<div class="line"><a id="l03646" name="l03646"></a><span class="lineno"> 3646</span> </div>
<div class="line"><a id="l03647" name="l03647"></a><span class="lineno"> 3647</span>    <span class="keywordflow">if</span> (matrix.LhsSize() == 0 &amp;&amp; matrix.RhsSize() == 0) {</div>
<div class="line"><a id="l03648" name="l03648"></a><span class="lineno"> 3648</span>      <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l03649" name="l03649"></a><span class="lineno"> 3649</span>    }</div>
<div class="line"><a id="l03650" name="l03650"></a><span class="lineno"> 3650</span> </div>
<div class="line"><a id="l03651" name="l03651"></a><span class="lineno"> 3651</span>    <span class="keywordflow">if</span> (match_flags() == UnorderedMatcherRequire::ExactMatch) {</div>
<div class="line"><a id="l03652" name="l03652"></a><span class="lineno"> 3652</span>      <span class="keywordflow">if</span> (matrix.LhsSize() != matrix.RhsSize()) {</div>
<div class="line"><a id="l03653" name="l03653"></a><span class="lineno"> 3653</span>        <span class="comment">// The element count doesn&#39;t match.  If the container is empty,</span></div>
<div class="line"><a id="l03654" name="l03654"></a><span class="lineno"> 3654</span>        <span class="comment">// there&#39;s no need to explain anything as Google Mock already</span></div>
<div class="line"><a id="l03655" name="l03655"></a><span class="lineno"> 3655</span>        <span class="comment">// prints the empty container. Otherwise we just need to show</span></div>
<div class="line"><a id="l03656" name="l03656"></a><span class="lineno"> 3656</span>        <span class="comment">// how many elements there actually are.</span></div>
<div class="line"><a id="l03657" name="l03657"></a><span class="lineno"> 3657</span>        <span class="keywordflow">if</span> (matrix.LhsSize() != 0 &amp;&amp; listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l03658" name="l03658"></a><span class="lineno"> 3658</span>          *listener &lt;&lt; <span class="stringliteral">&quot;which has &quot;</span> &lt;&lt; Elements(matrix.LhsSize());</div>
<div class="line"><a id="l03659" name="l03659"></a><span class="lineno"> 3659</span>        }</div>
<div class="line"><a id="l03660" name="l03660"></a><span class="lineno"> 3660</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03661" name="l03661"></a><span class="lineno"> 3661</span>      }</div>
<div class="line"><a id="l03662" name="l03662"></a><span class="lineno"> 3662</span>    }</div>
<div class="line"><a id="l03663" name="l03663"></a><span class="lineno"> 3663</span> </div>
<div class="line"><a id="l03664" name="l03664"></a><span class="lineno"> 3664</span>    <span class="keywordflow">return</span> VerifyMatchMatrix(element_printouts, matrix, listener) &amp;&amp;</div>
<div class="line"><a id="l03665" name="l03665"></a><span class="lineno"> 3665</span>           FindPairing(matrix, listener);</div>
<div class="line"><a id="l03666" name="l03666"></a><span class="lineno"> 3666</span>  }</div>
<div class="line"><a id="l03667" name="l03667"></a><span class="lineno"> 3667</span> </div>
<div class="line"><a id="l03668" name="l03668"></a><span class="lineno"> 3668</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03669" name="l03669"></a><span class="lineno"> 3669</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ElementIter&gt;</div>
<div class="line"><a id="l03670" name="l03670"></a><span class="lineno"> 3670</span>  MatchMatrix AnalyzeElements(ElementIter elem_first, ElementIter elem_last,</div>
<div class="line"><a id="l03671" name="l03671"></a><span class="lineno"> 3671</span>                              ::std::vector&lt;std::string&gt;* element_printouts,</div>
<div class="line"><a id="l03672" name="l03672"></a><span class="lineno"> 3672</span>                              MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03673" name="l03673"></a><span class="lineno"> 3673</span>    element_printouts-&gt;clear();</div>
<div class="line"><a id="l03674" name="l03674"></a><span class="lineno"> 3674</span>    ::std::vector&lt;char&gt; did_match;</div>
<div class="line"><a id="l03675" name="l03675"></a><span class="lineno"> 3675</span>    <span class="keywordtype">size_t</span> num_elements = 0;</div>
<div class="line"><a id="l03676" name="l03676"></a><span class="lineno"> 3676</span>    DummyMatchResultListener dummy;</div>
<div class="line"><a id="l03677" name="l03677"></a><span class="lineno"> 3677</span>    <span class="keywordflow">for</span> (; elem_first != elem_last; ++num_elements, ++elem_first) {</div>
<div class="line"><a id="l03678" name="l03678"></a><span class="lineno"> 3678</span>      <span class="keywordflow">if</span> (listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l03679" name="l03679"></a><span class="lineno"> 3679</span>        element_printouts-&gt;push_back(PrintToString(*elem_first));</div>
<div class="line"><a id="l03680" name="l03680"></a><span class="lineno"> 3680</span>      }</div>
<div class="line"><a id="l03681" name="l03681"></a><span class="lineno"> 3681</span>      <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> irhs = 0; irhs != matchers_.size(); ++irhs) {</div>
<div class="line"><a id="l03682" name="l03682"></a><span class="lineno"> 3682</span>        did_match.push_back(</div>
<div class="line"><a id="l03683" name="l03683"></a><span class="lineno"> 3683</span>            matchers_[irhs].MatchAndExplain(*elem_first, &amp;dummy));</div>
<div class="line"><a id="l03684" name="l03684"></a><span class="lineno"> 3684</span>      }</div>
<div class="line"><a id="l03685" name="l03685"></a><span class="lineno"> 3685</span>    }</div>
<div class="line"><a id="l03686" name="l03686"></a><span class="lineno"> 3686</span> </div>
<div class="line"><a id="l03687" name="l03687"></a><span class="lineno"> 3687</span>    MatchMatrix matrix(num_elements, matchers_.size());</div>
<div class="line"><a id="l03688" name="l03688"></a><span class="lineno"> 3688</span>    ::std::vector&lt;char&gt;::const_iterator did_match_iter = did_match.begin();</div>
<div class="line"><a id="l03689" name="l03689"></a><span class="lineno"> 3689</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> ilhs = 0; ilhs != num_elements; ++ilhs) {</div>
<div class="line"><a id="l03690" name="l03690"></a><span class="lineno"> 3690</span>      <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> irhs = 0; irhs != matchers_.size(); ++irhs) {</div>
<div class="line"><a id="l03691" name="l03691"></a><span class="lineno"> 3691</span>        matrix.SetEdge(ilhs, irhs, *did_match_iter++ != 0);</div>
<div class="line"><a id="l03692" name="l03692"></a><span class="lineno"> 3692</span>      }</div>
<div class="line"><a id="l03693" name="l03693"></a><span class="lineno"> 3693</span>    }</div>
<div class="line"><a id="l03694" name="l03694"></a><span class="lineno"> 3694</span>    <span class="keywordflow">return</span> matrix;</div>
<div class="line"><a id="l03695" name="l03695"></a><span class="lineno"> 3695</span>  }</div>
<div class="line"><a id="l03696" name="l03696"></a><span class="lineno"> 3696</span> </div>
<div class="line"><a id="l03697" name="l03697"></a><span class="lineno"> 3697</span>  ::std::vector&lt;Matcher&lt;const Element&amp;&gt;&gt; matchers_;</div>
<div class="line"><a id="l03698" name="l03698"></a><span class="lineno"> 3698</span>};</div>
<div class="line"><a id="l03699" name="l03699"></a><span class="lineno"> 3699</span> </div>
<div class="line"><a id="l03700" name="l03700"></a><span class="lineno"> 3700</span><span class="comment">// Functor for use in TransformTuple.</span></div>
<div class="line"><a id="l03701" name="l03701"></a><span class="lineno"> 3701</span><span class="comment">// Performs MatcherCast&lt;Target&gt; on an input argument of any type.</span></div>
<div class="line"><a id="l03702" name="l03702"></a><span class="lineno"> 3702</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Target&gt;</div>
<div class="line"><a id="l03703" name="l03703"></a><span class="lineno"> 3703</span><span class="keyword">struct </span>CastAndAppendTransform {</div>
<div class="line"><a id="l03704" name="l03704"></a><span class="lineno"> 3704</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Arg&gt;</div>
<div class="line"><a id="l03705" name="l03705"></a><span class="lineno"> 3705</span>  Matcher&lt;Target&gt; operator()(<span class="keyword">const</span> Arg&amp; a)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03706" name="l03706"></a><span class="lineno"> 3706</span>    <span class="keywordflow">return</span> MatcherCast&lt;Target&gt;(a);</div>
<div class="line"><a id="l03707" name="l03707"></a><span class="lineno"> 3707</span>  }</div>
<div class="line"><a id="l03708" name="l03708"></a><span class="lineno"> 3708</span>};</div>
<div class="line"><a id="l03709" name="l03709"></a><span class="lineno"> 3709</span> </div>
<div class="line"><a id="l03710" name="l03710"></a><span class="lineno"> 3710</span><span class="comment">// Implements UnorderedElementsAre.</span></div>
<div class="line"><a id="l03711" name="l03711"></a><span class="lineno"> 3711</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple&gt;</div>
<div class="line"><a id="l03712" name="l03712"></a><span class="lineno"> 3712</span><span class="keyword">class </span>UnorderedElementsAreMatcher {</div>
<div class="line"><a id="l03713" name="l03713"></a><span class="lineno"> 3713</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03714" name="l03714"></a><span class="lineno"> 3714</span>  <span class="keyword">explicit</span> UnorderedElementsAreMatcher(<span class="keyword">const</span> MatcherTuple&amp; args)</div>
<div class="line"><a id="l03715" name="l03715"></a><span class="lineno"> 3715</span>      : matchers_(args) {}</div>
<div class="line"><a id="l03716" name="l03716"></a><span class="lineno"> 3716</span> </div>
<div class="line"><a id="l03717" name="l03717"></a><span class="lineno"> 3717</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03718" name="l03718"></a><span class="lineno"> 3718</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03719" name="l03719"></a><span class="lineno"> 3719</span>    <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;</div>
<div class="line"><a id="l03720" name="l03720"></a><span class="lineno"> 3720</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> internal::StlContainerView&lt;RawContainer&gt;::type View;</div>
<div class="line"><a id="l03721" name="l03721"></a><span class="lineno"> 3721</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> View::value_type Element;</div>
<div class="line"><a id="l03722" name="l03722"></a><span class="lineno"> 3722</span>    typedef ::std::vector&lt;Matcher&lt;const Element&amp;&gt;&gt; MatcherVec;</div>
<div class="line"><a id="l03723" name="l03723"></a><span class="lineno"> 3723</span>    MatcherVec matchers;</div>
<div class="line"><a id="l03724" name="l03724"></a><span class="lineno"> 3724</span>    matchers.reserve(::std::tuple_size&lt;MatcherTuple&gt;::value);</div>
<div class="line"><a id="l03725" name="l03725"></a><span class="lineno"> 3725</span>    TransformTupleValues(CastAndAppendTransform&lt;const Element&amp;&gt;(), matchers_,</div>
<div class="line"><a id="l03726" name="l03726"></a><span class="lineno"> 3726</span>                         ::std::back_inserter(matchers));</div>
<div class="line"><a id="l03727" name="l03727"></a><span class="lineno"> 3727</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(</div>
<div class="line"><a id="l03728" name="l03728"></a><span class="lineno"> 3728</span>        <span class="keyword">new</span> UnorderedElementsAreMatcherImpl&lt;const Container&amp;&gt;(</div>
<div class="line"><a id="l03729" name="l03729"></a><span class="lineno"> 3729</span>            UnorderedMatcherRequire::ExactMatch, matchers.begin(),</div>
<div class="line"><a id="l03730" name="l03730"></a><span class="lineno"> 3730</span>            matchers.end()));</div>
<div class="line"><a id="l03731" name="l03731"></a><span class="lineno"> 3731</span>  }</div>
<div class="line"><a id="l03732" name="l03732"></a><span class="lineno"> 3732</span> </div>
<div class="line"><a id="l03733" name="l03733"></a><span class="lineno"> 3733</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03734" name="l03734"></a><span class="lineno"> 3734</span>  <span class="keyword">const</span> MatcherTuple matchers_;</div>
<div class="line"><a id="l03735" name="l03735"></a><span class="lineno"> 3735</span>};</div>
<div class="line"><a id="l03736" name="l03736"></a><span class="lineno"> 3736</span> </div>
<div class="line"><a id="l03737" name="l03737"></a><span class="lineno"> 3737</span><span class="comment">// Implements ElementsAre.</span></div>
<div class="line"><a id="l03738" name="l03738"></a><span class="lineno"> 3738</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTuple&gt;</div>
<div class="line"><a id="l03739" name="l03739"></a><span class="lineno"> 3739</span><span class="keyword">class </span>ElementsAreMatcher {</div>
<div class="line"><a id="l03740" name="l03740"></a><span class="lineno"> 3740</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03741" name="l03741"></a><span class="lineno"> 3741</span>  <span class="keyword">explicit</span> ElementsAreMatcher(<span class="keyword">const</span> MatcherTuple&amp; args) : matchers_(args) {}</div>
<div class="line"><a id="l03742" name="l03742"></a><span class="lineno"> 3742</span> </div>
<div class="line"><a id="l03743" name="l03743"></a><span class="lineno"> 3743</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03744" name="l03744"></a><span class="lineno"> 3744</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03745" name="l03745"></a><span class="lineno"> 3745</span>    <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l03746" name="l03746"></a><span class="lineno"> 3746</span>        !IsHashTable&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(Container)&gt;::value ||</div>
<div class="line"><a id="l03747" name="l03747"></a><span class="lineno"> 3747</span>            ::std::tuple_size&lt;MatcherTuple&gt;::value &lt; 2,</div>
<div class="line"><a id="l03748" name="l03748"></a><span class="lineno"> 3748</span>        <span class="stringliteral">&quot;use UnorderedElementsAre with hash tables&quot;</span>);</div>
<div class="line"><a id="l03749" name="l03749"></a><span class="lineno"> 3749</span> </div>
<div class="line"><a id="l03750" name="l03750"></a><span class="lineno"> 3750</span>    <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Container) RawContainer;</div>
<div class="line"><a id="l03751" name="l03751"></a><span class="lineno"> 3751</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> internal::StlContainerView&lt;RawContainer&gt;::type View;</div>
<div class="line"><a id="l03752" name="l03752"></a><span class="lineno"> 3752</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> View::value_type Element;</div>
<div class="line"><a id="l03753" name="l03753"></a><span class="lineno"> 3753</span>    typedef ::std::vector&lt;Matcher&lt;const Element&amp;&gt;&gt; MatcherVec;</div>
<div class="line"><a id="l03754" name="l03754"></a><span class="lineno"> 3754</span>    MatcherVec matchers;</div>
<div class="line"><a id="l03755" name="l03755"></a><span class="lineno"> 3755</span>    matchers.reserve(::std::tuple_size&lt;MatcherTuple&gt;::value);</div>
<div class="line"><a id="l03756" name="l03756"></a><span class="lineno"> 3756</span>    TransformTupleValues(CastAndAppendTransform&lt;const Element&amp;&gt;(), matchers_,</div>
<div class="line"><a id="l03757" name="l03757"></a><span class="lineno"> 3757</span>                         ::std::back_inserter(matchers));</div>
<div class="line"><a id="l03758" name="l03758"></a><span class="lineno"> 3758</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(<span class="keyword">new</span> ElementsAreMatcherImpl&lt;const Container&amp;&gt;(</div>
<div class="line"><a id="l03759" name="l03759"></a><span class="lineno"> 3759</span>        matchers.begin(), matchers.end()));</div>
<div class="line"><a id="l03760" name="l03760"></a><span class="lineno"> 3760</span>  }</div>
<div class="line"><a id="l03761" name="l03761"></a><span class="lineno"> 3761</span> </div>
<div class="line"><a id="l03762" name="l03762"></a><span class="lineno"> 3762</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03763" name="l03763"></a><span class="lineno"> 3763</span>  <span class="keyword">const</span> MatcherTuple matchers_;</div>
<div class="line"><a id="l03764" name="l03764"></a><span class="lineno"> 3764</span>};</div>
<div class="line"><a id="l03765" name="l03765"></a><span class="lineno"> 3765</span> </div>
<div class="line"><a id="l03766" name="l03766"></a><span class="lineno"> 3766</span><span class="comment">// Implements UnorderedElementsAreArray(), IsSubsetOf(), and IsSupersetOf().</span></div>
<div class="line"><a id="l03767" name="l03767"></a><span class="lineno"> 3767</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03768" name="l03768"></a><span class="lineno"> 3768</span><span class="keyword">class </span>UnorderedElementsAreArrayMatcher {</div>
<div class="line"><a id="l03769" name="l03769"></a><span class="lineno"> 3769</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03770" name="l03770"></a><span class="lineno"> 3770</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l03771" name="l03771"></a><span class="lineno"> 3771</span>  UnorderedElementsAreArrayMatcher(UnorderedMatcherRequire::Flags match_flags,</div>
<div class="line"><a id="l03772" name="l03772"></a><span class="lineno"> 3772</span>                                   Iter first, Iter last)</div>
<div class="line"><a id="l03773" name="l03773"></a><span class="lineno"> 3773</span>      : match_flags_(match_flags), matchers_(first, last) {}</div>
<div class="line"><a id="l03774" name="l03774"></a><span class="lineno"> 3774</span> </div>
<div class="line"><a id="l03775" name="l03775"></a><span class="lineno"> 3775</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03776" name="l03776"></a><span class="lineno"> 3776</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03777" name="l03777"></a><span class="lineno"> 3777</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(</div>
<div class="line"><a id="l03778" name="l03778"></a><span class="lineno"> 3778</span>        <span class="keyword">new</span> UnorderedElementsAreMatcherImpl&lt;const Container&amp;&gt;(</div>
<div class="line"><a id="l03779" name="l03779"></a><span class="lineno"> 3779</span>            match_flags_, matchers_.begin(), matchers_.end()));</div>
<div class="line"><a id="l03780" name="l03780"></a><span class="lineno"> 3780</span>  }</div>
<div class="line"><a id="l03781" name="l03781"></a><span class="lineno"> 3781</span> </div>
<div class="line"><a id="l03782" name="l03782"></a><span class="lineno"> 3782</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03783" name="l03783"></a><span class="lineno"> 3783</span>  UnorderedMatcherRequire::Flags match_flags_;</div>
<div class="line"><a id="l03784" name="l03784"></a><span class="lineno"> 3784</span>  ::std::vector&lt;T&gt; matchers_;</div>
<div class="line"><a id="l03785" name="l03785"></a><span class="lineno"> 3785</span>};</div>
<div class="line"><a id="l03786" name="l03786"></a><span class="lineno"> 3786</span> </div>
<div class="line"><a id="l03787" name="l03787"></a><span class="lineno"> 3787</span><span class="comment">// Implements ElementsAreArray().</span></div>
<div class="line"><a id="l03788" name="l03788"></a><span class="lineno"> 3788</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03789" name="l03789"></a><span class="lineno"> 3789</span><span class="keyword">class </span>ElementsAreArrayMatcher {</div>
<div class="line"><a id="l03790" name="l03790"></a><span class="lineno"> 3790</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03791" name="l03791"></a><span class="lineno"> 3791</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l03792" name="l03792"></a><span class="lineno"> 3792</span>  ElementsAreArrayMatcher(Iter first, Iter last) : matchers_(first, last) {}</div>
<div class="line"><a id="l03793" name="l03793"></a><span class="lineno"> 3793</span> </div>
<div class="line"><a id="l03794" name="l03794"></a><span class="lineno"> 3794</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l03795" name="l03795"></a><span class="lineno"> 3795</span>  <span class="keyword">operator</span> Matcher&lt;Container&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03796" name="l03796"></a><span class="lineno"> 3796</span>    <span class="keyword">static_assert</span>(</div>
<div class="line"><a id="l03797" name="l03797"></a><span class="lineno"> 3797</span>        !IsHashTable&lt;GTEST_REMOVE_REFERENCE_AND_CONST_(Container)&gt;::value,</div>
<div class="line"><a id="l03798" name="l03798"></a><span class="lineno"> 3798</span>        <span class="stringliteral">&quot;use UnorderedElementsAreArray with hash tables&quot;</span>);</div>
<div class="line"><a id="l03799" name="l03799"></a><span class="lineno"> 3799</span> </div>
<div class="line"><a id="l03800" name="l03800"></a><span class="lineno"> 3800</span>    <span class="keywordflow">return</span> Matcher&lt;Container&gt;(<span class="keyword">new</span> ElementsAreMatcherImpl&lt;const Container&amp;&gt;(</div>
<div class="line"><a id="l03801" name="l03801"></a><span class="lineno"> 3801</span>        matchers_.begin(), matchers_.end()));</div>
<div class="line"><a id="l03802" name="l03802"></a><span class="lineno"> 3802</span>  }</div>
<div class="line"><a id="l03803" name="l03803"></a><span class="lineno"> 3803</span> </div>
<div class="line"><a id="l03804" name="l03804"></a><span class="lineno"> 3804</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03805" name="l03805"></a><span class="lineno"> 3805</span>  const ::std::vector&lt;T&gt; matchers_;</div>
<div class="line"><a id="l03806" name="l03806"></a><span class="lineno"> 3806</span>};</div>
<div class="line"><a id="l03807" name="l03807"></a><span class="lineno"> 3807</span> </div>
<div class="line"><a id="l03808" name="l03808"></a><span class="lineno"> 3808</span><span class="comment">// Given a 2-tuple matcher tm of type Tuple2Matcher and a value second</span></div>
<div class="line"><a id="l03809" name="l03809"></a><span class="lineno"> 3809</span><span class="comment">// of type Second, BoundSecondMatcher&lt;Tuple2Matcher, Second&gt;(tm,</span></div>
<div class="line"><a id="l03810" name="l03810"></a><span class="lineno"> 3810</span><span class="comment">// second) is a polymorphic matcher that matches a value x if and only if</span></div>
<div class="line"><a id="l03811" name="l03811"></a><span class="lineno"> 3811</span><span class="comment">// tm matches tuple (x, second).  Useful for implementing</span></div>
<div class="line"><a id="l03812" name="l03812"></a><span class="lineno"> 3812</span><span class="comment">// UnorderedPointwise() in terms of UnorderedElementsAreArray().</span></div>
<div class="line"><a id="l03813" name="l03813"></a><span class="lineno"> 3813</span><span class="comment">//</span></div>
<div class="line"><a id="l03814" name="l03814"></a><span class="lineno"> 3814</span><span class="comment">// BoundSecondMatcher is copyable and assignable, as we need to put</span></div>
<div class="line"><a id="l03815" name="l03815"></a><span class="lineno"> 3815</span><span class="comment">// instances of this class in a vector when implementing</span></div>
<div class="line"><a id="l03816" name="l03816"></a><span class="lineno"> 3816</span><span class="comment">// UnorderedPointwise().</span></div>
<div class="line"><a id="l03817" name="l03817"></a><span class="lineno"> 3817</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple2Matcher, <span class="keyword">typename</span> Second&gt;</div>
<div class="line"><a id="l03818" name="l03818"></a><span class="lineno"> 3818</span><span class="keyword">class </span>BoundSecondMatcher {</div>
<div class="line"><a id="l03819" name="l03819"></a><span class="lineno"> 3819</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03820" name="l03820"></a><span class="lineno"> 3820</span>  BoundSecondMatcher(<span class="keyword">const</span> Tuple2Matcher&amp; tm, <span class="keyword">const</span> Second&amp; second)</div>
<div class="line"><a id="l03821" name="l03821"></a><span class="lineno"> 3821</span>      : tuple2_matcher_(tm), second_value_(second) {}</div>
<div class="line"><a id="l03822" name="l03822"></a><span class="lineno"> 3822</span> </div>
<div class="line"><a id="l03823" name="l03823"></a><span class="lineno"> 3823</span>  BoundSecondMatcher(<span class="keyword">const</span> BoundSecondMatcher&amp; other) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l03824" name="l03824"></a><span class="lineno"> 3824</span> </div>
<div class="line"><a id="l03825" name="l03825"></a><span class="lineno"> 3825</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03826" name="l03826"></a><span class="lineno"> 3826</span>  <span class="keyword">operator</span> Matcher&lt;T&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03827" name="l03827"></a><span class="lineno"> 3827</span>    <span class="keywordflow">return</span> MakeMatcher(<span class="keyword">new</span> Impl&lt;T&gt;(tuple2_matcher_, second_value_));</div>
<div class="line"><a id="l03828" name="l03828"></a><span class="lineno"> 3828</span>  }</div>
<div class="line"><a id="l03829" name="l03829"></a><span class="lineno"> 3829</span> </div>
<div class="line"><a id="l03830" name="l03830"></a><span class="lineno"> 3830</span>  <span class="comment">// We have to define this for UnorderedPointwise() to compile in</span></div>
<div class="line"><a id="l03831" name="l03831"></a><span class="lineno"> 3831</span>  <span class="comment">// C++98 mode, as it puts BoundSecondMatcher instances in a vector,</span></div>
<div class="line"><a id="l03832" name="l03832"></a><span class="lineno"> 3832</span>  <span class="comment">// which requires the elements to be assignable in C++98.  The</span></div>
<div class="line"><a id="l03833" name="l03833"></a><span class="lineno"> 3833</span>  <span class="comment">// compiler cannot generate the operator= for us, as Tuple2Matcher</span></div>
<div class="line"><a id="l03834" name="l03834"></a><span class="lineno"> 3834</span>  <span class="comment">// and Second may not be assignable.</span></div>
<div class="line"><a id="l03835" name="l03835"></a><span class="lineno"> 3835</span>  <span class="comment">//</span></div>
<div class="line"><a id="l03836" name="l03836"></a><span class="lineno"> 3836</span>  <span class="comment">// However, this should never be called, so the implementation just</span></div>
<div class="line"><a id="l03837" name="l03837"></a><span class="lineno"> 3837</span>  <span class="comment">// need to assert.</span></div>
<div class="line"><a id="l03838" name="l03838"></a><span class="lineno"> 3838</span>  <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> BoundSecondMatcher&amp; <span class="comment">/*rhs*/</span>) {</div>
<div class="line"><a id="l03839" name="l03839"></a><span class="lineno"> 3839</span>    GTEST_LOG_(FATAL) &lt;&lt; <span class="stringliteral">&quot;BoundSecondMatcher should never be assigned.&quot;</span>;</div>
<div class="line"><a id="l03840" name="l03840"></a><span class="lineno"> 3840</span>  }</div>
<div class="line"><a id="l03841" name="l03841"></a><span class="lineno"> 3841</span> </div>
<div class="line"><a id="l03842" name="l03842"></a><span class="lineno"> 3842</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03843" name="l03843"></a><span class="lineno"> 3843</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03844" name="l03844"></a><span class="lineno"> 3844</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;T&gt; {</div>
<div class="line"><a id="l03845" name="l03845"></a><span class="lineno"> 3845</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l03846" name="l03846"></a><span class="lineno"> 3846</span>    typedef ::std::tuple&lt;T, Second&gt; ArgTuple;</div>
<div class="line"><a id="l03847" name="l03847"></a><span class="lineno"> 3847</span> </div>
<div class="line"><a id="l03848" name="l03848"></a><span class="lineno"> 3848</span>    Impl(<span class="keyword">const</span> Tuple2Matcher&amp; tm, <span class="keyword">const</span> Second&amp; second)</div>
<div class="line"><a id="l03849" name="l03849"></a><span class="lineno"> 3849</span>        : mono_tuple2_matcher_(SafeMatcherCast&lt;const ArgTuple&amp;&gt;(tm)),</div>
<div class="line"><a id="l03850" name="l03850"></a><span class="lineno"> 3850</span>          second_value_(second) {}</div>
<div class="line"><a id="l03851" name="l03851"></a><span class="lineno"> 3851</span> </div>
<div class="line"><a id="l03852" name="l03852"></a><span class="lineno"> 3852</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03853" name="l03853"></a><span class="lineno"> 3853</span>      *os &lt;&lt; <span class="stringliteral">&quot;and &quot;</span>;</div>
<div class="line"><a id="l03854" name="l03854"></a><span class="lineno"> 3854</span>      UniversalPrint(second_value_, os);</div>
<div class="line"><a id="l03855" name="l03855"></a><span class="lineno"> 3855</span>      *os &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l03856" name="l03856"></a><span class="lineno"> 3856</span>      mono_tuple2_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03857" name="l03857"></a><span class="lineno"> 3857</span>    }</div>
<div class="line"><a id="l03858" name="l03858"></a><span class="lineno"> 3858</span> </div>
<div class="line"><a id="l03859" name="l03859"></a><span class="lineno"> 3859</span>    <span class="keywordtype">bool</span> MatchAndExplain(T x, MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03860" name="l03860"></a><span class="lineno"> 3860</span>      <span class="keywordflow">return</span> mono_tuple2_matcher_.MatchAndExplain(ArgTuple(x, second_value_),</div>
<div class="line"><a id="l03861" name="l03861"></a><span class="lineno"> 3861</span>                                                  listener);</div>
<div class="line"><a id="l03862" name="l03862"></a><span class="lineno"> 3862</span>    }</div>
<div class="line"><a id="l03863" name="l03863"></a><span class="lineno"> 3863</span> </div>
<div class="line"><a id="l03864" name="l03864"></a><span class="lineno"> 3864</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l03865" name="l03865"></a><span class="lineno"> 3865</span>    <span class="keyword">const</span> Matcher&lt;const ArgTuple&amp;&gt; mono_tuple2_matcher_;</div>
<div class="line"><a id="l03866" name="l03866"></a><span class="lineno"> 3866</span>    <span class="keyword">const</span> Second second_value_;</div>
<div class="line"><a id="l03867" name="l03867"></a><span class="lineno"> 3867</span>  };</div>
<div class="line"><a id="l03868" name="l03868"></a><span class="lineno"> 3868</span> </div>
<div class="line"><a id="l03869" name="l03869"></a><span class="lineno"> 3869</span>  <span class="keyword">const</span> Tuple2Matcher tuple2_matcher_;</div>
<div class="line"><a id="l03870" name="l03870"></a><span class="lineno"> 3870</span>  <span class="keyword">const</span> Second second_value_;</div>
<div class="line"><a id="l03871" name="l03871"></a><span class="lineno"> 3871</span>};</div>
<div class="line"><a id="l03872" name="l03872"></a><span class="lineno"> 3872</span> </div>
<div class="line"><a id="l03873" name="l03873"></a><span class="lineno"> 3873</span><span class="comment">// Given a 2-tuple matcher tm and a value second,</span></div>
<div class="line"><a id="l03874" name="l03874"></a><span class="lineno"> 3874</span><span class="comment">// MatcherBindSecond(tm, second) returns a matcher that matches a</span></div>
<div class="line"><a id="l03875" name="l03875"></a><span class="lineno"> 3875</span><span class="comment">// value x if and only if tm matches tuple (x, second).  Useful for</span></div>
<div class="line"><a id="l03876" name="l03876"></a><span class="lineno"> 3876</span><span class="comment">// implementing UnorderedPointwise() in terms of UnorderedElementsAreArray().</span></div>
<div class="line"><a id="l03877" name="l03877"></a><span class="lineno"> 3877</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple2Matcher, <span class="keyword">typename</span> Second&gt;</div>
<div class="line"><a id="l03878" name="l03878"></a><span class="lineno"> 3878</span>BoundSecondMatcher&lt;Tuple2Matcher, Second&gt; MatcherBindSecond(</div>
<div class="line"><a id="l03879" name="l03879"></a><span class="lineno"> 3879</span>    <span class="keyword">const</span> Tuple2Matcher&amp; tm, <span class="keyword">const</span> Second&amp; second) {</div>
<div class="line"><a id="l03880" name="l03880"></a><span class="lineno"> 3880</span>  <span class="keywordflow">return</span> BoundSecondMatcher&lt;Tuple2Matcher, Second&gt;(tm, second);</div>
<div class="line"><a id="l03881" name="l03881"></a><span class="lineno"> 3881</span>}</div>
<div class="line"><a id="l03882" name="l03882"></a><span class="lineno"> 3882</span> </div>
<div class="line"><a id="l03883" name="l03883"></a><span class="lineno"> 3883</span><span class="comment">// Returns the description for a matcher defined using the MATCHER*()</span></div>
<div class="line"><a id="l03884" name="l03884"></a><span class="lineno"> 3884</span><span class="comment">// macro where the user-supplied description string is &quot;&quot;, if</span></div>
<div class="line"><a id="l03885" name="l03885"></a><span class="lineno"> 3885</span><span class="comment">// &#39;negation&#39; is false; otherwise returns the description of the</span></div>
<div class="line"><a id="l03886" name="l03886"></a><span class="lineno"> 3886</span><span class="comment">// negation of the matcher.  &#39;param_values&#39; contains a list of strings</span></div>
<div class="line"><a id="l03887" name="l03887"></a><span class="lineno"> 3887</span><span class="comment">// that are the print-out of the matcher&#39;s parameters.</span></div>
<div class="line"><a id="l03888" name="l03888"></a><span class="lineno"> 3888</span>GTEST_API_ std::string FormatMatcherDescription(</div>
<div class="line"><a id="l03889" name="l03889"></a><span class="lineno"> 3889</span>    <span class="keywordtype">bool</span> <a class="code hl_struct" href="structtesting_1_1internal_1_1negation.html">negation</a>, <span class="keyword">const</span> <span class="keywordtype">char</span>* matcher_name,</div>
<div class="line"><a id="l03890" name="l03890"></a><span class="lineno"> 3890</span>    <span class="keyword">const</span> std::vector&lt;const char*&gt;&amp; param_names, <span class="keyword">const</span> Strings&amp; param_values);</div>
<div class="line"><a id="l03891" name="l03891"></a><span class="lineno"> 3891</span> </div>
<div class="line"><a id="l03892" name="l03892"></a><span class="lineno"> 3892</span><span class="comment">// Implements a matcher that checks the value of a optional&lt;&gt; type variable.</span></div>
<div class="line"><a id="l03893" name="l03893"></a><span class="lineno"> 3893</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> ValueMatcher&gt;</div>
<div class="line"><a id="l03894" name="l03894"></a><span class="lineno"> 3894</span><span class="keyword">class </span>OptionalMatcher {</div>
<div class="line"><a id="l03895" name="l03895"></a><span class="lineno"> 3895</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03896" name="l03896"></a><span class="lineno"> 3896</span>  <span class="keyword">explicit</span> OptionalMatcher(<span class="keyword">const</span> ValueMatcher&amp; value_matcher)</div>
<div class="line"><a id="l03897" name="l03897"></a><span class="lineno"> 3897</span>      : value_matcher_(value_matcher) {}</div>
<div class="line"><a id="l03898" name="l03898"></a><span class="lineno"> 3898</span> </div>
<div class="line"><a id="l03899" name="l03899"></a><span class="lineno"> 3899</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Optional&gt;</div>
<div class="line"><a id="l03900" name="l03900"></a><span class="lineno"> 3900</span>  <span class="keyword">operator</span> Matcher&lt;Optional&gt;()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03901" name="l03901"></a><span class="lineno"> 3901</span>    <span class="keywordflow">return</span> Matcher&lt;Optional&gt;(<span class="keyword">new</span> Impl&lt;const Optional&amp;&gt;(value_matcher_));</div>
<div class="line"><a id="l03902" name="l03902"></a><span class="lineno"> 3902</span>  }</div>
<div class="line"><a id="l03903" name="l03903"></a><span class="lineno"> 3903</span> </div>
<div class="line"><a id="l03904" name="l03904"></a><span class="lineno"> 3904</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Optional&gt;</div>
<div class="line"><a id="l03905" name="l03905"></a><span class="lineno"> 3905</span>  <span class="keyword">class </span>Impl : <span class="keyword">public</span> MatcherInterface&lt;Optional&gt; {</div>
<div class="line"><a id="l03906" name="l03906"></a><span class="lineno"> 3906</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l03907" name="l03907"></a><span class="lineno"> 3907</span>    <span class="keyword">typedef</span> GTEST_REMOVE_REFERENCE_AND_CONST_(Optional) OptionalView;</div>
<div class="line"><a id="l03908" name="l03908"></a><span class="lineno"> 3908</span>    <span class="keyword">typedef</span> <span class="keyword">typename</span> OptionalView::value_type ValueType;</div>
<div class="line"><a id="l03909" name="l03909"></a><span class="lineno"> 3909</span>    <span class="keyword">explicit</span> Impl(<span class="keyword">const</span> ValueMatcher&amp; value_matcher)</div>
<div class="line"><a id="l03910" name="l03910"></a><span class="lineno"> 3910</span>        : value_matcher_(MatcherCast&lt;ValueType&gt;(value_matcher)) {}</div>
<div class="line"><a id="l03911" name="l03911"></a><span class="lineno"> 3911</span> </div>
<div class="line"><a id="l03912" name="l03912"></a><span class="lineno"> 3912</span>    <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03913" name="l03913"></a><span class="lineno"> 3913</span>      *os &lt;&lt; <span class="stringliteral">&quot;value &quot;</span>;</div>
<div class="line"><a id="l03914" name="l03914"></a><span class="lineno"> 3914</span>      value_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03915" name="l03915"></a><span class="lineno"> 3915</span>    }</div>
<div class="line"><a id="l03916" name="l03916"></a><span class="lineno"> 3916</span> </div>
<div class="line"><a id="l03917" name="l03917"></a><span class="lineno"> 3917</span>    <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03918" name="l03918"></a><span class="lineno"> 3918</span>      *os &lt;&lt; <span class="stringliteral">&quot;value &quot;</span>;</div>
<div class="line"><a id="l03919" name="l03919"></a><span class="lineno"> 3919</span>      value_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l03920" name="l03920"></a><span class="lineno"> 3920</span>    }</div>
<div class="line"><a id="l03921" name="l03921"></a><span class="lineno"> 3921</span> </div>
<div class="line"><a id="l03922" name="l03922"></a><span class="lineno"> 3922</span>    <span class="keywordtype">bool</span> MatchAndExplain(Optional optional,</div>
<div class="line"><a id="l03923" name="l03923"></a><span class="lineno"> 3923</span>                         MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l03924" name="l03924"></a><span class="lineno"> 3924</span>      <span class="keywordflow">if</span> (!optional) {</div>
<div class="line"><a id="l03925" name="l03925"></a><span class="lineno"> 3925</span>        *listener &lt;&lt; <span class="stringliteral">&quot;which is not engaged&quot;</span>;</div>
<div class="line"><a id="l03926" name="l03926"></a><span class="lineno"> 3926</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03927" name="l03927"></a><span class="lineno"> 3927</span>      }</div>
<div class="line"><a id="l03928" name="l03928"></a><span class="lineno"> 3928</span>      <span class="keyword">const</span> ValueType&amp; value = *optional;</div>
<div class="line"><a id="l03929" name="l03929"></a><span class="lineno"> 3929</span>      StringMatchResultListener value_listener;</div>
<div class="line"><a id="l03930" name="l03930"></a><span class="lineno"> 3930</span>      <span class="keyword">const</span> <span class="keywordtype">bool</span> match = value_matcher_.MatchAndExplain(value, &amp;value_listener);</div>
<div class="line"><a id="l03931" name="l03931"></a><span class="lineno"> 3931</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose value &quot;</span> &lt;&lt; PrintToString(value)</div>
<div class="line"><a id="l03932" name="l03932"></a><span class="lineno"> 3932</span>                &lt;&lt; (match ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l03933" name="l03933"></a><span class="lineno"> 3933</span>      PrintIfNotEmpty(value_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l03934" name="l03934"></a><span class="lineno"> 3934</span>      <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l03935" name="l03935"></a><span class="lineno"> 3935</span>    }</div>
<div class="line"><a id="l03936" name="l03936"></a><span class="lineno"> 3936</span> </div>
<div class="line"><a id="l03937" name="l03937"></a><span class="lineno"> 3937</span>   <span class="keyword">private</span>:</div>
<div class="line"><a id="l03938" name="l03938"></a><span class="lineno"> 3938</span>    <span class="keyword">const</span> Matcher&lt;ValueType&gt; value_matcher_;</div>
<div class="line"><a id="l03939" name="l03939"></a><span class="lineno"> 3939</span>  };</div>
<div class="line"><a id="l03940" name="l03940"></a><span class="lineno"> 3940</span> </div>
<div class="line"><a id="l03941" name="l03941"></a><span class="lineno"> 3941</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03942" name="l03942"></a><span class="lineno"> 3942</span>  <span class="keyword">const</span> ValueMatcher value_matcher_;</div>
<div class="line"><a id="l03943" name="l03943"></a><span class="lineno"> 3943</span>};</div>
<div class="line"><a id="l03944" name="l03944"></a><span class="lineno"> 3944</span> </div>
<div class="line"><a id="l03945" name="l03945"></a><span class="lineno"> 3945</span><span class="keyword">namespace </span>variant_matcher {</div>
<div class="line"><a id="l03946" name="l03946"></a><span class="lineno"> 3946</span><span class="comment">// Overloads to allow VariantMatcher to do proper ADL lookup.</span></div>
<div class="line"><a id="l03947" name="l03947"></a><span class="lineno"> 3947</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03948" name="l03948"></a><span class="lineno"> 3948</span><span class="keywordtype">void</span> holds_alternative() {}</div>
<div class="line"><a id="l03949" name="l03949"></a><span class="lineno"> 3949</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03950" name="l03950"></a><span class="lineno"> 3950</span><span class="keywordtype">void</span> get() {}</div>
<div class="line"><a id="l03951" name="l03951"></a><span class="lineno"> 3951</span> </div>
<div class="line"><a id="l03952" name="l03952"></a><span class="lineno"> 3952</span><span class="comment">// Implements a matcher that checks the value of a variant&lt;&gt; type variable.</span></div>
<div class="line"><a id="l03953" name="l03953"></a><span class="lineno"> 3953</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l03954" name="l03954"></a><span class="lineno"> 3954</span><span class="keyword">class </span>VariantMatcher {</div>
<div class="line"><a id="l03955" name="l03955"></a><span class="lineno"> 3955</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l03956" name="l03956"></a><span class="lineno"> 3956</span>  <span class="keyword">explicit</span> VariantMatcher(::testing::Matcher&lt;const T&amp;&gt; matcher)</div>
<div class="line"><a id="l03957" name="l03957"></a><span class="lineno"> 3957</span>      : matcher_(std::move(matcher)) {}</div>
<div class="line"><a id="l03958" name="l03958"></a><span class="lineno"> 3958</span> </div>
<div class="line"><a id="l03959" name="l03959"></a><span class="lineno"> 3959</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Variant&gt;</div>
<div class="line"><a id="l03960" name="l03960"></a><span class="lineno"> 3960</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> Variant&amp; value,</div>
<div class="line"><a id="l03961" name="l03961"></a><span class="lineno"> 3961</span>                       ::testing::MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03962" name="l03962"></a><span class="lineno"> 3962</span>    <span class="keyword">using </span>std::get;</div>
<div class="line"><a id="l03963" name="l03963"></a><span class="lineno"> 3963</span>    <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l03964" name="l03964"></a><span class="lineno"> 3964</span>      <span class="keywordflow">return</span> holds_alternative&lt;T&gt;(value) &amp;&amp; matcher_.Matches(get&lt;T&gt;(value));</div>
<div class="line"><a id="l03965" name="l03965"></a><span class="lineno"> 3965</span>    }</div>
<div class="line"><a id="l03966" name="l03966"></a><span class="lineno"> 3966</span> </div>
<div class="line"><a id="l03967" name="l03967"></a><span class="lineno"> 3967</span>    <span class="keywordflow">if</span> (!holds_alternative&lt;T&gt;(value)) {</div>
<div class="line"><a id="l03968" name="l03968"></a><span class="lineno"> 3968</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose value is not of type &#39;&quot;</span> &lt;&lt; GetTypeName() &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a id="l03969" name="l03969"></a><span class="lineno"> 3969</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l03970" name="l03970"></a><span class="lineno"> 3970</span>    }</div>
<div class="line"><a id="l03971" name="l03971"></a><span class="lineno"> 3971</span> </div>
<div class="line"><a id="l03972" name="l03972"></a><span class="lineno"> 3972</span>    <span class="keyword">const</span> T&amp; elem = get&lt;T&gt;(value);</div>
<div class="line"><a id="l03973" name="l03973"></a><span class="lineno"> 3973</span>    StringMatchResultListener elem_listener;</div>
<div class="line"><a id="l03974" name="l03974"></a><span class="lineno"> 3974</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> match = matcher_.MatchAndExplain(elem, &amp;elem_listener);</div>
<div class="line"><a id="l03975" name="l03975"></a><span class="lineno"> 3975</span>    *listener &lt;&lt; <span class="stringliteral">&quot;whose value &quot;</span> &lt;&lt; PrintToString(elem)</div>
<div class="line"><a id="l03976" name="l03976"></a><span class="lineno"> 3976</span>              &lt;&lt; (match ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l03977" name="l03977"></a><span class="lineno"> 3977</span>    PrintIfNotEmpty(elem_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l03978" name="l03978"></a><span class="lineno"> 3978</span>    <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l03979" name="l03979"></a><span class="lineno"> 3979</span>  }</div>
<div class="line"><a id="l03980" name="l03980"></a><span class="lineno"> 3980</span> </div>
<div class="line"><a id="l03981" name="l03981"></a><span class="lineno"> 3981</span>  <span class="keywordtype">void</span> DescribeTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03982" name="l03982"></a><span class="lineno"> 3982</span>    *os &lt;&lt; <span class="stringliteral">&quot;is a variant&lt;&gt; with value of type &#39;&quot;</span> &lt;&lt; GetTypeName()</div>
<div class="line"><a id="l03983" name="l03983"></a><span class="lineno"> 3983</span>        &lt;&lt; <span class="stringliteral">&quot;&#39; and the value &quot;</span>;</div>
<div class="line"><a id="l03984" name="l03984"></a><span class="lineno"> 3984</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l03985" name="l03985"></a><span class="lineno"> 3985</span>  }</div>
<div class="line"><a id="l03986" name="l03986"></a><span class="lineno"> 3986</span> </div>
<div class="line"><a id="l03987" name="l03987"></a><span class="lineno"> 3987</span>  <span class="keywordtype">void</span> DescribeNegationTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l03988" name="l03988"></a><span class="lineno"> 3988</span>    *os &lt;&lt; <span class="stringliteral">&quot;is a variant&lt;&gt; with value of type other than &#39;&quot;</span> &lt;&lt; GetTypeName()</div>
<div class="line"><a id="l03989" name="l03989"></a><span class="lineno"> 3989</span>        &lt;&lt; <span class="stringliteral">&quot;&#39; or the value &quot;</span>;</div>
<div class="line"><a id="l03990" name="l03990"></a><span class="lineno"> 3990</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l03991" name="l03991"></a><span class="lineno"> 3991</span>  }</div>
<div class="line"><a id="l03992" name="l03992"></a><span class="lineno"> 3992</span> </div>
<div class="line"><a id="l03993" name="l03993"></a><span class="lineno"> 3993</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l03994" name="l03994"></a><span class="lineno"> 3994</span>  <span class="keyword">static</span> std::string GetTypeName() {</div>
<div class="line"><a id="l03995" name="l03995"></a><span class="lineno"> 3995</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l03996" name="l03996"></a><span class="lineno"> 3996</span>    GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(</div>
<div class="line"><a id="l03997" name="l03997"></a><span class="lineno"> 3997</span>        <span class="keywordflow">return</span> internal::GetTypeName&lt;T&gt;());</div>
<div class="line"><a id="l03998" name="l03998"></a><span class="lineno"> 3998</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l03999" name="l03999"></a><span class="lineno"> 3999</span>    <span class="keywordflow">return</span> <span class="stringliteral">&quot;the element type&quot;</span>;</div>
<div class="line"><a id="l04000" name="l04000"></a><span class="lineno"> 4000</span>  }</div>
<div class="line"><a id="l04001" name="l04001"></a><span class="lineno"> 4001</span> </div>
<div class="line"><a id="l04002" name="l04002"></a><span class="lineno"> 4002</span>  const ::testing::Matcher&lt;const T&amp;&gt; matcher_;</div>
<div class="line"><a id="l04003" name="l04003"></a><span class="lineno"> 4003</span>};</div>
<div class="line"><a id="l04004" name="l04004"></a><span class="lineno"> 4004</span> </div>
<div class="line"><a id="l04005" name="l04005"></a><span class="lineno"> 4005</span>}  <span class="comment">// namespace variant_matcher</span></div>
<div class="line"><a id="l04006" name="l04006"></a><span class="lineno"> 4006</span> </div>
<div class="line"><a id="l04007" name="l04007"></a><span class="lineno"> 4007</span><span class="keyword">namespace </span>any_cast_matcher {</div>
<div class="line"><a id="l04008" name="l04008"></a><span class="lineno"> 4008</span> </div>
<div class="line"><a id="l04009" name="l04009"></a><span class="lineno"> 4009</span><span class="comment">// Overloads to allow AnyCastMatcher to do proper ADL lookup.</span></div>
<div class="line"><a id="l04010" name="l04010"></a><span class="lineno"> 4010</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04011" name="l04011"></a><span class="lineno"> 4011</span><span class="keywordtype">void</span> any_cast() {}</div>
<div class="line"><a id="l04012" name="l04012"></a><span class="lineno"> 4012</span> </div>
<div class="line"><a id="l04013" name="l04013"></a><span class="lineno"> 4013</span><span class="comment">// Implements a matcher that any_casts the value.</span></div>
<div class="line"><a id="l04014" name="l04014"></a><span class="lineno"> 4014</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04015" name="l04015"></a><span class="lineno"> 4015</span><span class="keyword">class </span>AnyCastMatcher {</div>
<div class="line"><a id="l04016" name="l04016"></a><span class="lineno"> 4016</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l04017" name="l04017"></a><span class="lineno"> 4017</span>  <span class="keyword">explicit</span> AnyCastMatcher(const ::testing::Matcher&lt;const T&amp;&gt;&amp; matcher)</div>
<div class="line"><a id="l04018" name="l04018"></a><span class="lineno"> 4018</span>      : matcher_(matcher) {}</div>
<div class="line"><a id="l04019" name="l04019"></a><span class="lineno"> 4019</span> </div>
<div class="line"><a id="l04020" name="l04020"></a><span class="lineno"> 4020</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> AnyType&gt;</div>
<div class="line"><a id="l04021" name="l04021"></a><span class="lineno"> 4021</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> AnyType&amp; value,</div>
<div class="line"><a id="l04022" name="l04022"></a><span class="lineno"> 4022</span>                       ::testing::MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l04023" name="l04023"></a><span class="lineno"> 4023</span>    <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) {</div>
<div class="line"><a id="l04024" name="l04024"></a><span class="lineno"> 4024</span>      <span class="keyword">const</span> T* ptr = any_cast&lt;T&gt;(&amp;value);</div>
<div class="line"><a id="l04025" name="l04025"></a><span class="lineno"> 4025</span>      <span class="keywordflow">return</span> ptr != <span class="keyword">nullptr</span> &amp;&amp; matcher_.Matches(*ptr);</div>
<div class="line"><a id="l04026" name="l04026"></a><span class="lineno"> 4026</span>    }</div>
<div class="line"><a id="l04027" name="l04027"></a><span class="lineno"> 4027</span> </div>
<div class="line"><a id="l04028" name="l04028"></a><span class="lineno"> 4028</span>    <span class="keyword">const</span> T* elem = any_cast&lt;T&gt;(&amp;value);</div>
<div class="line"><a id="l04029" name="l04029"></a><span class="lineno"> 4029</span>    <span class="keywordflow">if</span> (elem == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l04030" name="l04030"></a><span class="lineno"> 4030</span>      *listener &lt;&lt; <span class="stringliteral">&quot;whose value is not of type &#39;&quot;</span> &lt;&lt; GetTypeName() &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a id="l04031" name="l04031"></a><span class="lineno"> 4031</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l04032" name="l04032"></a><span class="lineno"> 4032</span>    }</div>
<div class="line"><a id="l04033" name="l04033"></a><span class="lineno"> 4033</span> </div>
<div class="line"><a id="l04034" name="l04034"></a><span class="lineno"> 4034</span>    StringMatchResultListener elem_listener;</div>
<div class="line"><a id="l04035" name="l04035"></a><span class="lineno"> 4035</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> match = matcher_.MatchAndExplain(*elem, &amp;elem_listener);</div>
<div class="line"><a id="l04036" name="l04036"></a><span class="lineno"> 4036</span>    *listener &lt;&lt; <span class="stringliteral">&quot;whose value &quot;</span> &lt;&lt; PrintToString(*elem)</div>
<div class="line"><a id="l04037" name="l04037"></a><span class="lineno"> 4037</span>              &lt;&lt; (match ? <span class="stringliteral">&quot; matches&quot;</span> : <span class="stringliteral">&quot; doesn&#39;t match&quot;</span>);</div>
<div class="line"><a id="l04038" name="l04038"></a><span class="lineno"> 4038</span>    PrintIfNotEmpty(elem_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l04039" name="l04039"></a><span class="lineno"> 4039</span>    <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l04040" name="l04040"></a><span class="lineno"> 4040</span>  }</div>
<div class="line"><a id="l04041" name="l04041"></a><span class="lineno"> 4041</span> </div>
<div class="line"><a id="l04042" name="l04042"></a><span class="lineno"> 4042</span>  <span class="keywordtype">void</span> DescribeTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l04043" name="l04043"></a><span class="lineno"> 4043</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an &#39;any&#39; type with value of type &#39;&quot;</span> &lt;&lt; GetTypeName()</div>
<div class="line"><a id="l04044" name="l04044"></a><span class="lineno"> 4044</span>        &lt;&lt; <span class="stringliteral">&quot;&#39; and the value &quot;</span>;</div>
<div class="line"><a id="l04045" name="l04045"></a><span class="lineno"> 4045</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l04046" name="l04046"></a><span class="lineno"> 4046</span>  }</div>
<div class="line"><a id="l04047" name="l04047"></a><span class="lineno"> 4047</span> </div>
<div class="line"><a id="l04048" name="l04048"></a><span class="lineno"> 4048</span>  <span class="keywordtype">void</span> DescribeNegationTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l04049" name="l04049"></a><span class="lineno"> 4049</span>    *os &lt;&lt; <span class="stringliteral">&quot;is an &#39;any&#39; type with value of type other than &#39;&quot;</span> &lt;&lt; GetTypeName()</div>
<div class="line"><a id="l04050" name="l04050"></a><span class="lineno"> 4050</span>        &lt;&lt; <span class="stringliteral">&quot;&#39; or the value &quot;</span>;</div>
<div class="line"><a id="l04051" name="l04051"></a><span class="lineno"> 4051</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l04052" name="l04052"></a><span class="lineno"> 4052</span>  }</div>
<div class="line"><a id="l04053" name="l04053"></a><span class="lineno"> 4053</span> </div>
<div class="line"><a id="l04054" name="l04054"></a><span class="lineno"> 4054</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l04055" name="l04055"></a><span class="lineno"> 4055</span>  <span class="keyword">static</span> std::string GetTypeName() {</div>
<div class="line"><a id="l04056" name="l04056"></a><span class="lineno"> 4056</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l04057" name="l04057"></a><span class="lineno"> 4057</span>    GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(</div>
<div class="line"><a id="l04058" name="l04058"></a><span class="lineno"> 4058</span>        <span class="keywordflow">return</span> internal::GetTypeName&lt;T&gt;());</div>
<div class="line"><a id="l04059" name="l04059"></a><span class="lineno"> 4059</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l04060" name="l04060"></a><span class="lineno"> 4060</span>    <span class="keywordflow">return</span> <span class="stringliteral">&quot;the element type&quot;</span>;</div>
<div class="line"><a id="l04061" name="l04061"></a><span class="lineno"> 4061</span>  }</div>
<div class="line"><a id="l04062" name="l04062"></a><span class="lineno"> 4062</span> </div>
<div class="line"><a id="l04063" name="l04063"></a><span class="lineno"> 4063</span>  const ::testing::Matcher&lt;const T&amp;&gt; matcher_;</div>
<div class="line"><a id="l04064" name="l04064"></a><span class="lineno"> 4064</span>};</div>
<div class="line"><a id="l04065" name="l04065"></a><span class="lineno"> 4065</span> </div>
<div class="line"><a id="l04066" name="l04066"></a><span class="lineno"> 4066</span>}  <span class="comment">// namespace any_cast_matcher</span></div>
<div class="line"><a id="l04067" name="l04067"></a><span class="lineno"> 4067</span> </div>
<div class="line"><a id="l04068" name="l04068"></a><span class="lineno"> 4068</span><span class="comment">// Implements the Args() matcher.</span></div>
<div class="line"><a id="l04069" name="l04069"></a><span class="lineno"> 4069</span><span class="keyword">template</span> &lt;<span class="keyword">class </span>ArgsTuple, <span class="keywordtype">size_t</span>... k&gt;</div>
<div class="line"><a id="l04070" name="l04070"></a><span class="lineno"> 4070</span><span class="keyword">class </span>ArgsMatcherImpl : <span class="keyword">public</span> MatcherInterface&lt;ArgsTuple&gt; {</div>
<div class="line"><a id="l04071" name="l04071"></a><span class="lineno"> 4071</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l04072" name="l04072"></a><span class="lineno"> 4072</span>  <span class="keyword">using </span>RawArgsTuple = <span class="keyword">typename</span> std::decay&lt;ArgsTuple&gt;::type;</div>
<div class="line"><a id="l04073" name="l04073"></a><span class="lineno"> 4073</span>  <span class="keyword">using </span>SelectedArgs =</div>
<div class="line"><a id="l04074" name="l04074"></a><span class="lineno"> 4074</span>      std::tuple&lt;typename std::tuple_element&lt;k, RawArgsTuple&gt;::type...&gt;;</div>
<div class="line"><a id="l04075" name="l04075"></a><span class="lineno"> 4075</span>  <span class="keyword">using </span>MonomorphicInnerMatcher = Matcher&lt;const SelectedArgs&amp;&gt;;</div>
<div class="line"><a id="l04076" name="l04076"></a><span class="lineno"> 4076</span> </div>
<div class="line"><a id="l04077" name="l04077"></a><span class="lineno"> 4077</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l04078" name="l04078"></a><span class="lineno"> 4078</span>  <span class="keyword">explicit</span> ArgsMatcherImpl(<span class="keyword">const</span> InnerMatcher&amp; inner_matcher)</div>
<div class="line"><a id="l04079" name="l04079"></a><span class="lineno"> 4079</span>      : inner_matcher_(SafeMatcherCast&lt;const SelectedArgs&amp;&gt;(inner_matcher)) {}</div>
<div class="line"><a id="l04080" name="l04080"></a><span class="lineno"> 4080</span> </div>
<div class="line"><a id="l04081" name="l04081"></a><span class="lineno"> 4081</span>  <span class="keywordtype">bool</span> MatchAndExplain(ArgsTuple args,</div>
<div class="line"><a id="l04082" name="l04082"></a><span class="lineno"> 4082</span>                       MatchResultListener* listener)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l04083" name="l04083"></a><span class="lineno"> 4083</span>    <span class="comment">// Workaround spurious C4100 on MSVC&lt;=15.7 when k is empty.</span></div>
<div class="line"><a id="l04084" name="l04084"></a><span class="lineno"> 4084</span>    (void)args;</div>
<div class="line"><a id="l04085" name="l04085"></a><span class="lineno"> 4085</span>    <span class="keyword">const</span> SelectedArgs&amp; selected_args =</div>
<div class="line"><a id="l04086" name="l04086"></a><span class="lineno"> 4086</span>        std::forward_as_tuple(std::get&lt;k&gt;(args)...);</div>
<div class="line"><a id="l04087" name="l04087"></a><span class="lineno"> 4087</span>    <span class="keywordflow">if</span> (!listener-&gt;IsInterested()) <span class="keywordflow">return</span> inner_matcher_.Matches(selected_args);</div>
<div class="line"><a id="l04088" name="l04088"></a><span class="lineno"> 4088</span> </div>
<div class="line"><a id="l04089" name="l04089"></a><span class="lineno"> 4089</span>    PrintIndices(listener-&gt;stream());</div>
<div class="line"><a id="l04090" name="l04090"></a><span class="lineno"> 4090</span>    *listener &lt;&lt; <span class="stringliteral">&quot;are &quot;</span> &lt;&lt; PrintToString(selected_args);</div>
<div class="line"><a id="l04091" name="l04091"></a><span class="lineno"> 4091</span> </div>
<div class="line"><a id="l04092" name="l04092"></a><span class="lineno"> 4092</span>    StringMatchResultListener inner_listener;</div>
<div class="line"><a id="l04093" name="l04093"></a><span class="lineno"> 4093</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> match =</div>
<div class="line"><a id="l04094" name="l04094"></a><span class="lineno"> 4094</span>        inner_matcher_.MatchAndExplain(selected_args, &amp;inner_listener);</div>
<div class="line"><a id="l04095" name="l04095"></a><span class="lineno"> 4095</span>    PrintIfNotEmpty(inner_listener.str(), listener-&gt;stream());</div>
<div class="line"><a id="l04096" name="l04096"></a><span class="lineno"> 4096</span>    <span class="keywordflow">return</span> match;</div>
<div class="line"><a id="l04097" name="l04097"></a><span class="lineno"> 4097</span>  }</div>
<div class="line"><a id="l04098" name="l04098"></a><span class="lineno"> 4098</span> </div>
<div class="line"><a id="l04099" name="l04099"></a><span class="lineno"> 4099</span>  <span class="keywordtype">void</span> DescribeTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l04100" name="l04100"></a><span class="lineno"> 4100</span>    *os &lt;&lt; <span class="stringliteral">&quot;are a tuple &quot;</span>;</div>
<div class="line"><a id="l04101" name="l04101"></a><span class="lineno"> 4101</span>    PrintIndices(os);</div>
<div class="line"><a id="l04102" name="l04102"></a><span class="lineno"> 4102</span>    inner_matcher_.DescribeTo(os);</div>
<div class="line"><a id="l04103" name="l04103"></a><span class="lineno"> 4103</span>  }</div>
<div class="line"><a id="l04104" name="l04104"></a><span class="lineno"> 4104</span> </div>
<div class="line"><a id="l04105" name="l04105"></a><span class="lineno"> 4105</span>  <span class="keywordtype">void</span> DescribeNegationTo(::std::ostream* os)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l04106" name="l04106"></a><span class="lineno"> 4106</span>    *os &lt;&lt; <span class="stringliteral">&quot;are a tuple &quot;</span>;</div>
<div class="line"><a id="l04107" name="l04107"></a><span class="lineno"> 4107</span>    PrintIndices(os);</div>
<div class="line"><a id="l04108" name="l04108"></a><span class="lineno"> 4108</span>    inner_matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l04109" name="l04109"></a><span class="lineno"> 4109</span>  }</div>
<div class="line"><a id="l04110" name="l04110"></a><span class="lineno"> 4110</span> </div>
<div class="line"><a id="l04111" name="l04111"></a><span class="lineno"> 4111</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l04112" name="l04112"></a><span class="lineno"> 4112</span>  <span class="comment">// Prints the indices of the selected fields.</span></div>
<div class="line"><a id="l04113" name="l04113"></a><span class="lineno"> 4113</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> PrintIndices(::std::ostream* os) {</div>
<div class="line"><a id="l04114" name="l04114"></a><span class="lineno"> 4114</span>    *os &lt;&lt; <span class="stringliteral">&quot;whose fields (&quot;</span>;</div>
<div class="line"><a id="l04115" name="l04115"></a><span class="lineno"> 4115</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* sep = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l04116" name="l04116"></a><span class="lineno"> 4116</span>    <span class="comment">// Workaround spurious C4189 on MSVC&lt;=15.7 when k is empty.</span></div>
<div class="line"><a id="l04117" name="l04117"></a><span class="lineno"> 4117</span>    (void)sep;</div>
<div class="line"><a id="l04118" name="l04118"></a><span class="lineno"> 4118</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* dummy[] = {<span class="stringliteral">&quot;&quot;</span>, (*os &lt;&lt; sep &lt;&lt; <span class="stringliteral">&quot;#&quot;</span> &lt;&lt; k, sep = <span class="stringliteral">&quot;, &quot;</span>)...};</div>
<div class="line"><a id="l04119" name="l04119"></a><span class="lineno"> 4119</span>    (void)dummy;</div>
<div class="line"><a id="l04120" name="l04120"></a><span class="lineno"> 4120</span>    *os &lt;&lt; <span class="stringliteral">&quot;) &quot;</span>;</div>
<div class="line"><a id="l04121" name="l04121"></a><span class="lineno"> 4121</span>  }</div>
<div class="line"><a id="l04122" name="l04122"></a><span class="lineno"> 4122</span> </div>
<div class="line"><a id="l04123" name="l04123"></a><span class="lineno"> 4123</span>  MonomorphicInnerMatcher inner_matcher_;</div>
<div class="line"><a id="l04124" name="l04124"></a><span class="lineno"> 4124</span>};</div>
<div class="line"><a id="l04125" name="l04125"></a><span class="lineno"> 4125</span> </div>
<div class="line"><a id="l04126" name="l04126"></a><span class="lineno"> 4126</span><span class="keyword">template</span> &lt;<span class="keyword">class </span>InnerMatcher, <span class="keywordtype">size_t</span>... k&gt;</div>
<div class="line"><a id="l04127" name="l04127"></a><span class="lineno"> 4127</span><span class="keyword">class </span>ArgsMatcher {</div>
<div class="line"><a id="l04128" name="l04128"></a><span class="lineno"> 4128</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l04129" name="l04129"></a><span class="lineno"> 4129</span>  <span class="keyword">explicit</span> ArgsMatcher(InnerMatcher inner_matcher)</div>
<div class="line"><a id="l04130" name="l04130"></a><span class="lineno"> 4130</span>      : inner_matcher_(std::move(inner_matcher)) {}</div>
<div class="line"><a id="l04131" name="l04131"></a><span class="lineno"> 4131</span> </div>
<div class="line"><a id="l04132" name="l04132"></a><span class="lineno"> 4132</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ArgsTuple&gt;</div>
<div class="line"><a id="l04133" name="l04133"></a><span class="lineno"> 4133</span>  <span class="keyword">operator</span> Matcher&lt;ArgsTuple&gt;()<span class="keyword"> const </span>{  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l04134" name="l04134"></a><span class="lineno"> 4134</span>    <span class="keywordflow">return</span> MakeMatcher(<span class="keyword">new</span> ArgsMatcherImpl&lt;ArgsTuple, k...&gt;(inner_matcher_));</div>
<div class="line"><a id="l04135" name="l04135"></a><span class="lineno"> 4135</span>  }</div>
<div class="line"><a id="l04136" name="l04136"></a><span class="lineno"> 4136</span> </div>
<div class="line"><a id="l04137" name="l04137"></a><span class="lineno"> 4137</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l04138" name="l04138"></a><span class="lineno"> 4138</span>  InnerMatcher inner_matcher_;</div>
<div class="line"><a id="l04139" name="l04139"></a><span class="lineno"> 4139</span>};</div>
<div class="line"><a id="l04140" name="l04140"></a><span class="lineno"> 4140</span> </div>
<div class="line"><a id="l04141" name="l04141"></a><span class="lineno"> 4141</span>}  <span class="comment">// namespace internal</span></div>
<div class="line"><a id="l04142" name="l04142"></a><span class="lineno"> 4142</span> </div>
<div class="line"><a id="l04143" name="l04143"></a><span class="lineno"> 4143</span><span class="comment">// ElementsAreArray(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l04144" name="l04144"></a><span class="lineno"> 4144</span><span class="comment">// ElementsAreArray(pointer, count)</span></div>
<div class="line"><a id="l04145" name="l04145"></a><span class="lineno"> 4145</span><span class="comment">// ElementsAreArray(array)</span></div>
<div class="line"><a id="l04146" name="l04146"></a><span class="lineno"> 4146</span><span class="comment">// ElementsAreArray(container)</span></div>
<div class="line"><a id="l04147" name="l04147"></a><span class="lineno"> 4147</span><span class="comment">// ElementsAreArray({ e1, e2, ..., en })</span></div>
<div class="line"><a id="l04148" name="l04148"></a><span class="lineno"> 4148</span><span class="comment">//</span></div>
<div class="line"><a id="l04149" name="l04149"></a><span class="lineno"> 4149</span><span class="comment">// The ElementsAreArray() functions are like ElementsAre(...), except</span></div>
<div class="line"><a id="l04150" name="l04150"></a><span class="lineno"> 4150</span><span class="comment">// that they are given a homogeneous sequence rather than taking each</span></div>
<div class="line"><a id="l04151" name="l04151"></a><span class="lineno"> 4151</span><span class="comment">// element as a function argument. The sequence can be specified as an</span></div>
<div class="line"><a id="l04152" name="l04152"></a><span class="lineno"> 4152</span><span class="comment">// array, a pointer and count, a vector, an initializer list, or an</span></div>
<div class="line"><a id="l04153" name="l04153"></a><span class="lineno"> 4153</span><span class="comment">// STL iterator range. In each of these cases, the underlying sequence</span></div>
<div class="line"><a id="l04154" name="l04154"></a><span class="lineno"> 4154</span><span class="comment">// can be either a sequence of values or a sequence of matchers.</span></div>
<div class="line"><a id="l04155" name="l04155"></a><span class="lineno"> 4155</span><span class="comment">//</span></div>
<div class="line"><a id="l04156" name="l04156"></a><span class="lineno"> 4156</span><span class="comment">// All forms of ElementsAreArray() make a copy of the input matcher sequence.</span></div>
<div class="line"><a id="l04157" name="l04157"></a><span class="lineno"> 4157</span> </div>
<div class="line"><a id="l04158" name="l04158"></a><span class="lineno"> 4158</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l04159" name="l04159"></a><span class="lineno"> 4159</span><span class="keyword">inline</span> internal::ElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04160" name="l04160"></a><span class="lineno"> 4160</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l04161" name="l04161"></a><span class="lineno"> 4161</span>ElementsAreArray(Iter first, Iter last) {</div>
<div class="line"><a id="l04162" name="l04162"></a><span class="lineno"> 4162</span>  <span class="keyword">typedef</span> typename ::std::iterator_traits&lt;Iter&gt;::value_type T;</div>
<div class="line"><a id="l04163" name="l04163"></a><span class="lineno"> 4163</span>  <span class="keywordflow">return</span> internal::ElementsAreArrayMatcher&lt;T&gt;(first, last);</div>
<div class="line"><a id="l04164" name="l04164"></a><span class="lineno"> 4164</span>}</div>
<div class="line"><a id="l04165" name="l04165"></a><span class="lineno"> 4165</span> </div>
<div class="line"><a id="l04166" name="l04166"></a><span class="lineno"> 4166</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04167" name="l04167"></a><span class="lineno"> 4167</span><span class="keyword">inline</span> <span class="keyword">auto</span> ElementsAreArray(<span class="keyword">const</span> T* pointer, <span class="keywordtype">size_t</span> count)</div>
<div class="line"><a id="l04168" name="l04168"></a><span class="lineno"> 4168</span>    -&gt; <span class="keyword">decltype</span>(ElementsAreArray(pointer, pointer + count)) {</div>
<div class="line"><a id="l04169" name="l04169"></a><span class="lineno"> 4169</span>  <span class="keywordflow">return</span> ElementsAreArray(pointer, pointer + count);</div>
<div class="line"><a id="l04170" name="l04170"></a><span class="lineno"> 4170</span>}</div>
<div class="line"><a id="l04171" name="l04171"></a><span class="lineno"> 4171</span> </div>
<div class="line"><a id="l04172" name="l04172"></a><span class="lineno"> 4172</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l04173" name="l04173"></a><span class="lineno"> 4173</span><span class="keyword">inline</span> <span class="keyword">auto</span> ElementsAreArray(<span class="keyword">const</span> T (&amp;array)[N])</div>
<div class="line"><a id="l04174" name="l04174"></a><span class="lineno"> 4174</span>    -&gt; <span class="keyword">decltype</span>(ElementsAreArray(array, N)) {</div>
<div class="line"><a id="l04175" name="l04175"></a><span class="lineno"> 4175</span>  <span class="keywordflow">return</span> ElementsAreArray(array, N);</div>
<div class="line"><a id="l04176" name="l04176"></a><span class="lineno"> 4176</span>}</div>
<div class="line"><a id="l04177" name="l04177"></a><span class="lineno"> 4177</span> </div>
<div class="line"><a id="l04178" name="l04178"></a><span class="lineno"> 4178</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04179" name="l04179"></a><span class="lineno"> 4179</span><span class="keyword">inline</span> <span class="keyword">auto</span> ElementsAreArray(<span class="keyword">const</span> Container&amp; container)</div>
<div class="line"><a id="l04180" name="l04180"></a><span class="lineno"> 4180</span>    -&gt; <span class="keyword">decltype</span>(ElementsAreArray(container.begin(), container.end())) {</div>
<div class="line"><a id="l04181" name="l04181"></a><span class="lineno"> 4181</span>  <span class="keywordflow">return</span> ElementsAreArray(container.begin(), container.end());</div>
<div class="line"><a id="l04182" name="l04182"></a><span class="lineno"> 4182</span>}</div>
<div class="line"><a id="l04183" name="l04183"></a><span class="lineno"> 4183</span> </div>
<div class="line"><a id="l04184" name="l04184"></a><span class="lineno"> 4184</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04185" name="l04185"></a><span class="lineno"> 4185</span><span class="keyword">inline</span> <span class="keyword">auto</span> ElementsAreArray(::std::initializer_list&lt;T&gt; xs)</div>
<div class="line"><a id="l04186" name="l04186"></a><span class="lineno"> 4186</span>    -&gt; <span class="keyword">decltype</span>(ElementsAreArray(xs.begin(), xs.end())) {</div>
<div class="line"><a id="l04187" name="l04187"></a><span class="lineno"> 4187</span>  <span class="keywordflow">return</span> ElementsAreArray(xs.begin(), xs.end());</div>
<div class="line"><a id="l04188" name="l04188"></a><span class="lineno"> 4188</span>}</div>
<div class="line"><a id="l04189" name="l04189"></a><span class="lineno"> 4189</span> </div>
<div class="line"><a id="l04190" name="l04190"></a><span class="lineno"> 4190</span><span class="comment">// UnorderedElementsAreArray(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l04191" name="l04191"></a><span class="lineno"> 4191</span><span class="comment">// UnorderedElementsAreArray(pointer, count)</span></div>
<div class="line"><a id="l04192" name="l04192"></a><span class="lineno"> 4192</span><span class="comment">// UnorderedElementsAreArray(array)</span></div>
<div class="line"><a id="l04193" name="l04193"></a><span class="lineno"> 4193</span><span class="comment">// UnorderedElementsAreArray(container)</span></div>
<div class="line"><a id="l04194" name="l04194"></a><span class="lineno"> 4194</span><span class="comment">// UnorderedElementsAreArray({ e1, e2, ..., en })</span></div>
<div class="line"><a id="l04195" name="l04195"></a><span class="lineno"> 4195</span><span class="comment">//</span></div>
<div class="line"><a id="l04196" name="l04196"></a><span class="lineno"> 4196</span><span class="comment">// UnorderedElementsAreArray() verifies that a bijective mapping onto a</span></div>
<div class="line"><a id="l04197" name="l04197"></a><span class="lineno"> 4197</span><span class="comment">// collection of matchers exists.</span></div>
<div class="line"><a id="l04198" name="l04198"></a><span class="lineno"> 4198</span><span class="comment">//</span></div>
<div class="line"><a id="l04199" name="l04199"></a><span class="lineno"> 4199</span><span class="comment">// The matchers can be specified as an array, a pointer and count, a container,</span></div>
<div class="line"><a id="l04200" name="l04200"></a><span class="lineno"> 4200</span><span class="comment">// an initializer list, or an STL iterator range. In each of these cases, the</span></div>
<div class="line"><a id="l04201" name="l04201"></a><span class="lineno"> 4201</span><span class="comment">// underlying matchers can be either values or matchers.</span></div>
<div class="line"><a id="l04202" name="l04202"></a><span class="lineno"> 4202</span> </div>
<div class="line"><a id="l04203" name="l04203"></a><span class="lineno"> 4203</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l04204" name="l04204"></a><span class="lineno"> 4204</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04205" name="l04205"></a><span class="lineno"> 4205</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l04206" name="l04206"></a><span class="lineno"> 4206</span>UnorderedElementsAreArray(Iter first, Iter last) {</div>
<div class="line"><a id="l04207" name="l04207"></a><span class="lineno"> 4207</span>  <span class="keyword">typedef</span> typename ::std::iterator_traits&lt;Iter&gt;::value_type T;</div>
<div class="line"><a id="l04208" name="l04208"></a><span class="lineno"> 4208</span>  <span class="keywordflow">return</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt;(</div>
<div class="line"><a id="l04209" name="l04209"></a><span class="lineno"> 4209</span>      internal::UnorderedMatcherRequire::ExactMatch, first, last);</div>
<div class="line"><a id="l04210" name="l04210"></a><span class="lineno"> 4210</span>}</div>
<div class="line"><a id="l04211" name="l04211"></a><span class="lineno"> 4211</span> </div>
<div class="line"><a id="l04212" name="l04212"></a><span class="lineno"> 4212</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04213" name="l04213"></a><span class="lineno"> 4213</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; UnorderedElementsAreArray(</div>
<div class="line"><a id="l04214" name="l04214"></a><span class="lineno"> 4214</span>    <span class="keyword">const</span> T* pointer, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l04215" name="l04215"></a><span class="lineno"> 4215</span>  <span class="keywordflow">return</span> UnorderedElementsAreArray(pointer, pointer + count);</div>
<div class="line"><a id="l04216" name="l04216"></a><span class="lineno"> 4216</span>}</div>
<div class="line"><a id="l04217" name="l04217"></a><span class="lineno"> 4217</span> </div>
<div class="line"><a id="l04218" name="l04218"></a><span class="lineno"> 4218</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l04219" name="l04219"></a><span class="lineno"> 4219</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; UnorderedElementsAreArray(</div>
<div class="line"><a id="l04220" name="l04220"></a><span class="lineno"> 4220</span>    <span class="keyword">const</span> T (&amp;array)[N]) {</div>
<div class="line"><a id="l04221" name="l04221"></a><span class="lineno"> 4221</span>  <span class="keywordflow">return</span> UnorderedElementsAreArray(array, N);</div>
<div class="line"><a id="l04222" name="l04222"></a><span class="lineno"> 4222</span>}</div>
<div class="line"><a id="l04223" name="l04223"></a><span class="lineno"> 4223</span> </div>
<div class="line"><a id="l04224" name="l04224"></a><span class="lineno"> 4224</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04225" name="l04225"></a><span class="lineno"> 4225</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04226" name="l04226"></a><span class="lineno"> 4226</span>    <span class="keyword">typename</span> Container::value_type&gt;</div>
<div class="line"><a id="l04227" name="l04227"></a><span class="lineno"> 4227</span>UnorderedElementsAreArray(<span class="keyword">const</span> Container&amp; container) {</div>
<div class="line"><a id="l04228" name="l04228"></a><span class="lineno"> 4228</span>  <span class="keywordflow">return</span> UnorderedElementsAreArray(container.begin(), container.end());</div>
<div class="line"><a id="l04229" name="l04229"></a><span class="lineno"> 4229</span>}</div>
<div class="line"><a id="l04230" name="l04230"></a><span class="lineno"> 4230</span> </div>
<div class="line"><a id="l04231" name="l04231"></a><span class="lineno"> 4231</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04232" name="l04232"></a><span class="lineno"> 4232</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; UnorderedElementsAreArray(</div>
<div class="line"><a id="l04233" name="l04233"></a><span class="lineno"> 4233</span>    ::std::initializer_list&lt;T&gt; xs) {</div>
<div class="line"><a id="l04234" name="l04234"></a><span class="lineno"> 4234</span>  <span class="keywordflow">return</span> UnorderedElementsAreArray(xs.begin(), xs.end());</div>
<div class="line"><a id="l04235" name="l04235"></a><span class="lineno"> 4235</span>}</div>
<div class="line"><a id="l04236" name="l04236"></a><span class="lineno"> 4236</span> </div>
<div class="line"><a id="l04237" name="l04237"></a><span class="lineno"> 4237</span><span class="comment">// _ is a matcher that matches anything of any type.</span></div>
<div class="line"><a id="l04238" name="l04238"></a><span class="lineno"> 4238</span><span class="comment">//</span></div>
<div class="line"><a id="l04239" name="l04239"></a><span class="lineno"> 4239</span><span class="comment">// This definition is fine as:</span></div>
<div class="line"><a id="l04240" name="l04240"></a><span class="lineno"> 4240</span><span class="comment">//</span></div>
<div class="line"><a id="l04241" name="l04241"></a><span class="lineno"> 4241</span><span class="comment">//   1. The C++ standard permits using the name _ in a namespace that</span></div>
<div class="line"><a id="l04242" name="l04242"></a><span class="lineno"> 4242</span><span class="comment">//      is not the global namespace or ::std.</span></div>
<div class="line"><a id="l04243" name="l04243"></a><span class="lineno"> 4243</span><span class="comment">//   2. The AnythingMatcher class has no data member or constructor,</span></div>
<div class="line"><a id="l04244" name="l04244"></a><span class="lineno"> 4244</span><span class="comment">//      so it&#39;s OK to create global variables of this type.</span></div>
<div class="line"><a id="l04245" name="l04245"></a><span class="lineno"> 4245</span><span class="comment">//   3. c-style has approved of using _ in this case.</span></div>
<div class="line"><a id="l04246" name="l04246"></a><span class="lineno"> 4246</span><span class="keyword">const</span> internal::AnythingMatcher _ = {};</div>
<div class="line"><a id="l04247" name="l04247"></a><span class="lineno"> 4247</span><span class="comment">// Creates a matcher that matches any value of the given type T.</span></div>
<div class="line"><a id="l04248" name="l04248"></a><span class="lineno"> 4248</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04249" name="l04249"></a><span class="lineno"> 4249</span><span class="keyword">inline</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> A() {</div>
<div class="line"><a id="l04250" name="l04250"></a><span class="lineno"> 4250</span>  <span class="keywordflow">return</span> _;</div>
<div class="line"><a id="l04251" name="l04251"></a><span class="lineno"> 4251</span>}</div>
<div class="line"><a id="l04252" name="l04252"></a><span class="lineno"> 4252</span> </div>
<div class="line"><a id="l04253" name="l04253"></a><span class="lineno"> 4253</span><span class="comment">// Creates a matcher that matches any value of the given type T.</span></div>
<div class="line"><a id="l04254" name="l04254"></a><span class="lineno"> 4254</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04255" name="l04255"></a><span class="lineno"> 4255</span><span class="keyword">inline</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> An() {</div>
<div class="line"><a id="l04256" name="l04256"></a><span class="lineno"> 4256</span>  <span class="keywordflow">return</span> _;</div>
<div class="line"><a id="l04257" name="l04257"></a><span class="lineno"> 4257</span>}</div>
<div class="line"><a id="l04258" name="l04258"></a><span class="lineno"> 4258</span> </div>
<div class="line"><a id="l04259" name="l04259"></a><span class="lineno"> 4259</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l04260" name="l04260"></a><span class="lineno"> 4260</span><a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> internal::MatcherCastImpl&lt;T, M&gt;::CastImpl(</div>
<div class="line"><a id="l04261" name="l04261"></a><span class="lineno"> 4261</span>    <span class="keyword">const</span> M&amp; value, std::false_type <span class="comment">/* convertible_to_matcher */</span>,</div>
<div class="line"><a id="l04262" name="l04262"></a><span class="lineno"> 4262</span>    std::false_type <span class="comment">/* convertible_to_T */</span>) {</div>
<div class="line"><a id="l04263" name="l04263"></a><span class="lineno"> 4263</span>  <span class="keywordflow">return</span> Eq(value);</div>
<div class="line"><a id="l04264" name="l04264"></a><span class="lineno"> 4264</span>}</div>
<div class="line"><a id="l04265" name="l04265"></a><span class="lineno"> 4265</span> </div>
<div class="line"><a id="l04266" name="l04266"></a><span class="lineno"> 4266</span><span class="comment">// Creates a polymorphic matcher that matches any NULL pointer.</span></div>
<div class="line"><a id="l04267" name="l04267"></a><span class="lineno"> 4267</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::IsNullMatcher&gt; IsNull() {</div>
<div class="line"><a id="l04268" name="l04268"></a><span class="lineno"> 4268</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::IsNullMatcher());</div>
<div class="line"><a id="l04269" name="l04269"></a><span class="lineno"> 4269</span>}</div>
<div class="line"><a id="l04270" name="l04270"></a><span class="lineno"> 4270</span> </div>
<div class="line"><a id="l04271" name="l04271"></a><span class="lineno"> 4271</span><span class="comment">// Creates a polymorphic matcher that matches any non-NULL pointer.</span></div>
<div class="line"><a id="l04272" name="l04272"></a><span class="lineno"> 4272</span><span class="comment">// This is convenient as Not(NULL) doesn&#39;t compile (the compiler</span></div>
<div class="line"><a id="l04273" name="l04273"></a><span class="lineno"> 4273</span><span class="comment">// thinks that that expression is comparing a pointer with an integer).</span></div>
<div class="line"><a id="l04274" name="l04274"></a><span class="lineno"> 4274</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::NotNullMatcher&gt; NotNull() {</div>
<div class="line"><a id="l04275" name="l04275"></a><span class="lineno"> 4275</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::NotNullMatcher());</div>
<div class="line"><a id="l04276" name="l04276"></a><span class="lineno"> 4276</span>}</div>
<div class="line"><a id="l04277" name="l04277"></a><span class="lineno"> 4277</span> </div>
<div class="line"><a id="l04278" name="l04278"></a><span class="lineno"> 4278</span><span class="comment">// Creates a polymorphic matcher that matches any argument that</span></div>
<div class="line"><a id="l04279" name="l04279"></a><span class="lineno"> 4279</span><span class="comment">// references variable x.</span></div>
<div class="line"><a id="l04280" name="l04280"></a><span class="lineno"> 4280</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04281" name="l04281"></a><span class="lineno"> 4281</span><span class="keyword">inline</span> internal::RefMatcher&lt;T&amp;&gt; Ref(T&amp; x) {  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l04282" name="l04282"></a><span class="lineno"> 4282</span>  <span class="keywordflow">return</span> internal::RefMatcher&lt;T&amp;&gt;(x);</div>
<div class="line"><a id="l04283" name="l04283"></a><span class="lineno"> 4283</span>}</div>
<div class="line"><a id="l04284" name="l04284"></a><span class="lineno"> 4284</span> </div>
<div class="line"><a id="l04285" name="l04285"></a><span class="lineno"> 4285</span><span class="comment">// Creates a polymorphic matcher that matches any NaN floating point.</span></div>
<div class="line"><a id="l04286" name="l04286"></a><span class="lineno"> 4286</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::IsNanMatcher&gt; IsNan() {</div>
<div class="line"><a id="l04287" name="l04287"></a><span class="lineno"> 4287</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::IsNanMatcher());</div>
<div class="line"><a id="l04288" name="l04288"></a><span class="lineno"> 4288</span>}</div>
<div class="line"><a id="l04289" name="l04289"></a><span class="lineno"> 4289</span> </div>
<div class="line"><a id="l04290" name="l04290"></a><span class="lineno"> 4290</span><span class="comment">// Creates a matcher that matches any double argument approximately</span></div>
<div class="line"><a id="l04291" name="l04291"></a><span class="lineno"> 4291</span><span class="comment">// equal to rhs, where two NANs are considered unequal.</span></div>
<div class="line"><a id="l04292" name="l04292"></a><span class="lineno"> 4292</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;double&gt; DoubleEq(<span class="keywordtype">double</span> rhs) {</div>
<div class="line"><a id="l04293" name="l04293"></a><span class="lineno"> 4293</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;double&gt;(rhs, <span class="keyword">false</span>);</div>
<div class="line"><a id="l04294" name="l04294"></a><span class="lineno"> 4294</span>}</div>
<div class="line"><a id="l04295" name="l04295"></a><span class="lineno"> 4295</span> </div>
<div class="line"><a id="l04296" name="l04296"></a><span class="lineno"> 4296</span><span class="comment">// Creates a matcher that matches any double argument approximately</span></div>
<div class="line"><a id="l04297" name="l04297"></a><span class="lineno"> 4297</span><span class="comment">// equal to rhs, including NaN values when rhs is NaN.</span></div>
<div class="line"><a id="l04298" name="l04298"></a><span class="lineno"> 4298</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;double&gt; NanSensitiveDoubleEq(<span class="keywordtype">double</span> rhs) {</div>
<div class="line"><a id="l04299" name="l04299"></a><span class="lineno"> 4299</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;double&gt;(rhs, <span class="keyword">true</span>);</div>
<div class="line"><a id="l04300" name="l04300"></a><span class="lineno"> 4300</span>}</div>
<div class="line"><a id="l04301" name="l04301"></a><span class="lineno"> 4301</span> </div>
<div class="line"><a id="l04302" name="l04302"></a><span class="lineno"> 4302</span><span class="comment">// Creates a matcher that matches any double argument approximately equal to</span></div>
<div class="line"><a id="l04303" name="l04303"></a><span class="lineno"> 4303</span><span class="comment">// rhs, up to the specified max absolute error bound, where two NANs are</span></div>
<div class="line"><a id="l04304" name="l04304"></a><span class="lineno"> 4304</span><span class="comment">// considered unequal.  The max absolute error bound must be non-negative.</span></div>
<div class="line"><a id="l04305" name="l04305"></a><span class="lineno"> 4305</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;double&gt; DoubleNear(<span class="keywordtype">double</span> rhs,</div>
<div class="line"><a id="l04306" name="l04306"></a><span class="lineno"> 4306</span>                                                      <span class="keywordtype">double</span> max_abs_error) {</div>
<div class="line"><a id="l04307" name="l04307"></a><span class="lineno"> 4307</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;double&gt;(rhs, <span class="keyword">false</span>, max_abs_error);</div>
<div class="line"><a id="l04308" name="l04308"></a><span class="lineno"> 4308</span>}</div>
<div class="line"><a id="l04309" name="l04309"></a><span class="lineno"> 4309</span> </div>
<div class="line"><a id="l04310" name="l04310"></a><span class="lineno"> 4310</span><span class="comment">// Creates a matcher that matches any double argument approximately equal to</span></div>
<div class="line"><a id="l04311" name="l04311"></a><span class="lineno"> 4311</span><span class="comment">// rhs, up to the specified max absolute error bound, including NaN values when</span></div>
<div class="line"><a id="l04312" name="l04312"></a><span class="lineno"> 4312</span><span class="comment">// rhs is NaN.  The max absolute error bound must be non-negative.</span></div>
<div class="line"><a id="l04313" name="l04313"></a><span class="lineno"> 4313</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;double&gt; NanSensitiveDoubleNear(</div>
<div class="line"><a id="l04314" name="l04314"></a><span class="lineno"> 4314</span>    <span class="keywordtype">double</span> rhs, <span class="keywordtype">double</span> max_abs_error) {</div>
<div class="line"><a id="l04315" name="l04315"></a><span class="lineno"> 4315</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;double&gt;(rhs, <span class="keyword">true</span>, max_abs_error);</div>
<div class="line"><a id="l04316" name="l04316"></a><span class="lineno"> 4316</span>}</div>
<div class="line"><a id="l04317" name="l04317"></a><span class="lineno"> 4317</span> </div>
<div class="line"><a id="l04318" name="l04318"></a><span class="lineno"> 4318</span><span class="comment">// Creates a matcher that matches any float argument approximately</span></div>
<div class="line"><a id="l04319" name="l04319"></a><span class="lineno"> 4319</span><span class="comment">// equal to rhs, where two NANs are considered unequal.</span></div>
<div class="line"><a id="l04320" name="l04320"></a><span class="lineno"> 4320</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;float&gt; FloatEq(<span class="keywordtype">float</span> rhs) {</div>
<div class="line"><a id="l04321" name="l04321"></a><span class="lineno"> 4321</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;float&gt;(rhs, <span class="keyword">false</span>);</div>
<div class="line"><a id="l04322" name="l04322"></a><span class="lineno"> 4322</span>}</div>
<div class="line"><a id="l04323" name="l04323"></a><span class="lineno"> 4323</span> </div>
<div class="line"><a id="l04324" name="l04324"></a><span class="lineno"> 4324</span><span class="comment">// Creates a matcher that matches any float argument approximately</span></div>
<div class="line"><a id="l04325" name="l04325"></a><span class="lineno"> 4325</span><span class="comment">// equal to rhs, including NaN values when rhs is NaN.</span></div>
<div class="line"><a id="l04326" name="l04326"></a><span class="lineno"> 4326</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;float&gt; NanSensitiveFloatEq(<span class="keywordtype">float</span> rhs) {</div>
<div class="line"><a id="l04327" name="l04327"></a><span class="lineno"> 4327</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;float&gt;(rhs, <span class="keyword">true</span>);</div>
<div class="line"><a id="l04328" name="l04328"></a><span class="lineno"> 4328</span>}</div>
<div class="line"><a id="l04329" name="l04329"></a><span class="lineno"> 4329</span> </div>
<div class="line"><a id="l04330" name="l04330"></a><span class="lineno"> 4330</span><span class="comment">// Creates a matcher that matches any float argument approximately equal to</span></div>
<div class="line"><a id="l04331" name="l04331"></a><span class="lineno"> 4331</span><span class="comment">// rhs, up to the specified max absolute error bound, where two NANs are</span></div>
<div class="line"><a id="l04332" name="l04332"></a><span class="lineno"> 4332</span><span class="comment">// considered unequal.  The max absolute error bound must be non-negative.</span></div>
<div class="line"><a id="l04333" name="l04333"></a><span class="lineno"> 4333</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;float&gt; FloatNear(<span class="keywordtype">float</span> rhs,</div>
<div class="line"><a id="l04334" name="l04334"></a><span class="lineno"> 4334</span>                                                    <span class="keywordtype">float</span> max_abs_error) {</div>
<div class="line"><a id="l04335" name="l04335"></a><span class="lineno"> 4335</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;float&gt;(rhs, <span class="keyword">false</span>, max_abs_error);</div>
<div class="line"><a id="l04336" name="l04336"></a><span class="lineno"> 4336</span>}</div>
<div class="line"><a id="l04337" name="l04337"></a><span class="lineno"> 4337</span> </div>
<div class="line"><a id="l04338" name="l04338"></a><span class="lineno"> 4338</span><span class="comment">// Creates a matcher that matches any float argument approximately equal to</span></div>
<div class="line"><a id="l04339" name="l04339"></a><span class="lineno"> 4339</span><span class="comment">// rhs, up to the specified max absolute error bound, including NaN values when</span></div>
<div class="line"><a id="l04340" name="l04340"></a><span class="lineno"> 4340</span><span class="comment">// rhs is NaN.  The max absolute error bound must be non-negative.</span></div>
<div class="line"><a id="l04341" name="l04341"></a><span class="lineno"> 4341</span><span class="keyword">inline</span> internal::FloatingEqMatcher&lt;float&gt; NanSensitiveFloatNear(</div>
<div class="line"><a id="l04342" name="l04342"></a><span class="lineno"> 4342</span>    <span class="keywordtype">float</span> rhs, <span class="keywordtype">float</span> max_abs_error) {</div>
<div class="line"><a id="l04343" name="l04343"></a><span class="lineno"> 4343</span>  <span class="keywordflow">return</span> internal::FloatingEqMatcher&lt;float&gt;(rhs, <span class="keyword">true</span>, max_abs_error);</div>
<div class="line"><a id="l04344" name="l04344"></a><span class="lineno"> 4344</span>}</div>
<div class="line"><a id="l04345" name="l04345"></a><span class="lineno"> 4345</span> </div>
<div class="line"><a id="l04346" name="l04346"></a><span class="lineno"> 4346</span><span class="comment">// Creates a matcher that matches a pointer (raw or smart) that points</span></div>
<div class="line"><a id="l04347" name="l04347"></a><span class="lineno"> 4347</span><span class="comment">// to a value that matches inner_matcher.</span></div>
<div class="line"><a id="l04348" name="l04348"></a><span class="lineno"> 4348</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l04349" name="l04349"></a><span class="lineno"> 4349</span><span class="keyword">inline</span> internal::PointeeMatcher&lt;InnerMatcher&gt; Pointee(</div>
<div class="line"><a id="l04350" name="l04350"></a><span class="lineno"> 4350</span>    <span class="keyword">const</span> InnerMatcher&amp; inner_matcher) {</div>
<div class="line"><a id="l04351" name="l04351"></a><span class="lineno"> 4351</span>  <span class="keywordflow">return</span> internal::PointeeMatcher&lt;InnerMatcher&gt;(inner_matcher);</div>
<div class="line"><a id="l04352" name="l04352"></a><span class="lineno"> 4352</span>}</div>
<div class="line"><a id="l04353" name="l04353"></a><span class="lineno"> 4353</span> </div>
<div class="line"><a id="l04354" name="l04354"></a><span class="lineno"> 4354</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l04355" name="l04355"></a><span class="lineno"> 4355</span><span class="comment">// Creates a matcher that matches a pointer or reference that matches</span></div>
<div class="line"><a id="l04356" name="l04356"></a><span class="lineno"> 4356</span><span class="comment">// inner_matcher when dynamic_cast&lt;To&gt; is applied.</span></div>
<div class="line"><a id="l04357" name="l04357"></a><span class="lineno"> 4357</span><span class="comment">// The result of dynamic_cast&lt;To&gt; is forwarded to the inner matcher.</span></div>
<div class="line"><a id="l04358" name="l04358"></a><span class="lineno"> 4358</span><span class="comment">// If To is a pointer and the cast fails, the inner matcher will receive NULL.</span></div>
<div class="line"><a id="l04359" name="l04359"></a><span class="lineno"> 4359</span><span class="comment">// If To is a reference and the cast fails, this matcher returns false</span></div>
<div class="line"><a id="l04360" name="l04360"></a><span class="lineno"> 4360</span><span class="comment">// immediately.</span></div>
<div class="line"><a id="l04361" name="l04361"></a><span class="lineno"> 4361</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> To&gt;</div>
<div class="line"><a id="l04362" name="l04362"></a><span class="lineno"> 4362</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::WhenDynamicCastToMatcher&lt;To&gt;&gt;</div>
<div class="line"><a id="l04363" name="l04363"></a><span class="lineno"> 4363</span>WhenDynamicCastTo(<span class="keyword">const</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;To&gt;</a>&amp; inner_matcher) {</div>
<div class="line"><a id="l04364" name="l04364"></a><span class="lineno"> 4364</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04365" name="l04365"></a><span class="lineno"> 4365</span>      internal::WhenDynamicCastToMatcher&lt;To&gt;(inner_matcher));</div>
<div class="line"><a id="l04366" name="l04366"></a><span class="lineno"> 4366</span>}</div>
<div class="line"><a id="l04367" name="l04367"></a><span class="lineno"> 4367</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l04368" name="l04368"></a><span class="lineno"> 4368</span> </div>
<div class="line"><a id="l04369" name="l04369"></a><span class="lineno"> 4369</span><span class="comment">// Creates a matcher that matches an object whose given field matches</span></div>
<div class="line"><a id="l04370" name="l04370"></a><span class="lineno"> 4370</span><span class="comment">// &#39;matcher&#39;.  For example,</span></div>
<div class="line"><a id="l04371" name="l04371"></a><span class="lineno"> 4371</span><span class="comment">//   Field(&amp;Foo::number, Ge(5))</span></div>
<div class="line"><a id="l04372" name="l04372"></a><span class="lineno"> 4372</span><span class="comment">// matches a Foo object x if and only if x.number &gt;= 5.</span></div>
<div class="line"><a id="l04373" name="l04373"></a><span class="lineno"> 4373</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> FieldType, <span class="keyword">typename</span> FieldMatcher&gt;</div>
<div class="line"><a id="l04374" name="l04374"></a><span class="lineno"> 4374</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::FieldMatcher&lt;Class, FieldType&gt;&gt; Field(</div>
<div class="line"><a id="l04375" name="l04375"></a><span class="lineno"> 4375</span>    FieldType Class::*field, <span class="keyword">const</span> FieldMatcher&amp; matcher) {</div>
<div class="line"><a id="l04376" name="l04376"></a><span class="lineno"> 4376</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::FieldMatcher&lt;Class, FieldType&gt;(</div>
<div class="line"><a id="l04377" name="l04377"></a><span class="lineno"> 4377</span>      field, MatcherCast&lt;const FieldType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04378" name="l04378"></a><span class="lineno"> 4378</span>  <span class="comment">// The call to MatcherCast() is required for supporting inner</span></div>
<div class="line"><a id="l04379" name="l04379"></a><span class="lineno"> 4379</span>  <span class="comment">// matchers of compatible types.  For example, it allows</span></div>
<div class="line"><a id="l04380" name="l04380"></a><span class="lineno"> 4380</span>  <span class="comment">//   Field(&amp;Foo::bar, m)</span></div>
<div class="line"><a id="l04381" name="l04381"></a><span class="lineno"> 4381</span>  <span class="comment">// to compile where bar is an int32 and m is a matcher for int64.</span></div>
<div class="line"><a id="l04382" name="l04382"></a><span class="lineno"> 4382</span>}</div>
<div class="line"><a id="l04383" name="l04383"></a><span class="lineno"> 4383</span> </div>
<div class="line"><a id="l04384" name="l04384"></a><span class="lineno"> 4384</span><span class="comment">// Same as Field() but also takes the name of the field to provide better error</span></div>
<div class="line"><a id="l04385" name="l04385"></a><span class="lineno"> 4385</span><span class="comment">// messages.</span></div>
<div class="line"><a id="l04386" name="l04386"></a><span class="lineno"> 4386</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> FieldType, <span class="keyword">typename</span> FieldMatcher&gt;</div>
<div class="line"><a id="l04387" name="l04387"></a><span class="lineno"> 4387</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::FieldMatcher&lt;Class, FieldType&gt;&gt; Field(</div>
<div class="line"><a id="l04388" name="l04388"></a><span class="lineno"> 4388</span>    <span class="keyword">const</span> std::string&amp; field_name, FieldType Class::*field,</div>
<div class="line"><a id="l04389" name="l04389"></a><span class="lineno"> 4389</span>    <span class="keyword">const</span> FieldMatcher&amp; matcher) {</div>
<div class="line"><a id="l04390" name="l04390"></a><span class="lineno"> 4390</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::FieldMatcher&lt;Class, FieldType&gt;(</div>
<div class="line"><a id="l04391" name="l04391"></a><span class="lineno"> 4391</span>      field_name, field, MatcherCast&lt;const FieldType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04392" name="l04392"></a><span class="lineno"> 4392</span>}</div>
<div class="line"><a id="l04393" name="l04393"></a><span class="lineno"> 4393</span> </div>
<div class="line"><a id="l04394" name="l04394"></a><span class="lineno"> 4394</span><span class="comment">// Creates a matcher that matches an object whose given property</span></div>
<div class="line"><a id="l04395" name="l04395"></a><span class="lineno"> 4395</span><span class="comment">// matches &#39;matcher&#39;.  For example,</span></div>
<div class="line"><a id="l04396" name="l04396"></a><span class="lineno"> 4396</span><span class="comment">//   Property(&amp;Foo::str, StartsWith(&quot;hi&quot;))</span></div>
<div class="line"><a id="l04397" name="l04397"></a><span class="lineno"> 4397</span><span class="comment">// matches a Foo object x if and only if x.str() starts with &quot;hi&quot;.</span></div>
<div class="line"><a id="l04398" name="l04398"></a><span class="lineno"> 4398</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> PropertyType, <span class="keyword">typename</span> PropertyMatcher&gt;</div>
<div class="line"><a id="l04399" name="l04399"></a><span class="lineno"> 4399</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::PropertyMatcher&lt;</div>
<div class="line"><a id="l04400" name="l04400"></a><span class="lineno"> 4400</span>    Class, PropertyType, PropertyType (Class::*)() <span class="keyword">const</span>&gt;&gt;</div>
<div class="line"><a id="l04401" name="l04401"></a><span class="lineno"> 4401</span>Property(PropertyType (Class::*property)() <span class="keyword">const</span>,</div>
<div class="line"><a id="l04402" name="l04402"></a><span class="lineno"> 4402</span>         <span class="keyword">const</span> PropertyMatcher&amp; matcher) {</div>
<div class="line"><a id="l04403" name="l04403"></a><span class="lineno"> 4403</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04404" name="l04404"></a><span class="lineno"> 4404</span>      internal::PropertyMatcher&lt;Class, PropertyType,</div>
<div class="line"><a id="l04405" name="l04405"></a><span class="lineno"> 4405</span>                                PropertyType (Class::*)() <span class="keyword">const</span>&gt;(</div>
<div class="line"><a id="l04406" name="l04406"></a><span class="lineno"> 4406</span>          property, MatcherCast&lt;const PropertyType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04407" name="l04407"></a><span class="lineno"> 4407</span>  <span class="comment">// The call to MatcherCast() is required for supporting inner</span></div>
<div class="line"><a id="l04408" name="l04408"></a><span class="lineno"> 4408</span>  <span class="comment">// matchers of compatible types.  For example, it allows</span></div>
<div class="line"><a id="l04409" name="l04409"></a><span class="lineno"> 4409</span>  <span class="comment">//   Property(&amp;Foo::bar, m)</span></div>
<div class="line"><a id="l04410" name="l04410"></a><span class="lineno"> 4410</span>  <span class="comment">// to compile where bar() returns an int32 and m is a matcher for int64.</span></div>
<div class="line"><a id="l04411" name="l04411"></a><span class="lineno"> 4411</span>}</div>
<div class="line"><a id="l04412" name="l04412"></a><span class="lineno"> 4412</span> </div>
<div class="line"><a id="l04413" name="l04413"></a><span class="lineno"> 4413</span><span class="comment">// Same as Property() above, but also takes the name of the property to provide</span></div>
<div class="line"><a id="l04414" name="l04414"></a><span class="lineno"> 4414</span><span class="comment">// better error messages.</span></div>
<div class="line"><a id="l04415" name="l04415"></a><span class="lineno"> 4415</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> PropertyType, <span class="keyword">typename</span> PropertyMatcher&gt;</div>
<div class="line"><a id="l04416" name="l04416"></a><span class="lineno"> 4416</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::PropertyMatcher&lt;</div>
<div class="line"><a id="l04417" name="l04417"></a><span class="lineno"> 4417</span>    Class, PropertyType, PropertyType (Class::*)() <span class="keyword">const</span>&gt;&gt;</div>
<div class="line"><a id="l04418" name="l04418"></a><span class="lineno"> 4418</span>Property(<span class="keyword">const</span> std::string&amp; property_name,</div>
<div class="line"><a id="l04419" name="l04419"></a><span class="lineno"> 4419</span>         PropertyType (Class::*property)() <span class="keyword">const</span>,</div>
<div class="line"><a id="l04420" name="l04420"></a><span class="lineno"> 4420</span>         <span class="keyword">const</span> PropertyMatcher&amp; matcher) {</div>
<div class="line"><a id="l04421" name="l04421"></a><span class="lineno"> 4421</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04422" name="l04422"></a><span class="lineno"> 4422</span>      internal::PropertyMatcher&lt;Class, PropertyType,</div>
<div class="line"><a id="l04423" name="l04423"></a><span class="lineno"> 4423</span>                                PropertyType (Class::*)() <span class="keyword">const</span>&gt;(</div>
<div class="line"><a id="l04424" name="l04424"></a><span class="lineno"> 4424</span>          property_name, property, MatcherCast&lt;const PropertyType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04425" name="l04425"></a><span class="lineno"> 4425</span>}</div>
<div class="line"><a id="l04426" name="l04426"></a><span class="lineno"> 4426</span> </div>
<div class="line"><a id="l04427" name="l04427"></a><span class="lineno"> 4427</span><span class="comment">// The same as above but for reference-qualified member functions.</span></div>
<div class="line"><a id="l04428" name="l04428"></a><span class="lineno"> 4428</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> PropertyType, <span class="keyword">typename</span> PropertyMatcher&gt;</div>
<div class="line"><a id="l04429" name="l04429"></a><span class="lineno"> 4429</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::PropertyMatcher&lt;</div>
<div class="line"><a id="l04430" name="l04430"></a><span class="lineno"> 4430</span>    Class, PropertyType, PropertyType (Class::*)() <span class="keyword">const</span>&amp;&gt;&gt;</div>
<div class="line"><a id="l04431" name="l04431"></a><span class="lineno"> 4431</span>Property(PropertyType (Class::*property)() <span class="keyword">const</span>&amp;,</div>
<div class="line"><a id="l04432" name="l04432"></a><span class="lineno"> 4432</span>         <span class="keyword">const</span> PropertyMatcher&amp; matcher) {</div>
<div class="line"><a id="l04433" name="l04433"></a><span class="lineno"> 4433</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04434" name="l04434"></a><span class="lineno"> 4434</span>      internal::PropertyMatcher&lt;Class, PropertyType,</div>
<div class="line"><a id="l04435" name="l04435"></a><span class="lineno"> 4435</span>                                PropertyType (Class::*)() <span class="keyword">const</span>&amp;&gt;(</div>
<div class="line"><a id="l04436" name="l04436"></a><span class="lineno"> 4436</span>          property, MatcherCast&lt;const PropertyType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04437" name="l04437"></a><span class="lineno"> 4437</span>}</div>
<div class="line"><a id="l04438" name="l04438"></a><span class="lineno"> 4438</span> </div>
<div class="line"><a id="l04439" name="l04439"></a><span class="lineno"> 4439</span><span class="comment">// Three-argument form for reference-qualified member functions.</span></div>
<div class="line"><a id="l04440" name="l04440"></a><span class="lineno"> 4440</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Class, <span class="keyword">typename</span> PropertyType, <span class="keyword">typename</span> PropertyMatcher&gt;</div>
<div class="line"><a id="l04441" name="l04441"></a><span class="lineno"> 4441</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::PropertyMatcher&lt;</div>
<div class="line"><a id="l04442" name="l04442"></a><span class="lineno"> 4442</span>    Class, PropertyType, PropertyType (Class::*)() <span class="keyword">const</span>&amp;&gt;&gt;</div>
<div class="line"><a id="l04443" name="l04443"></a><span class="lineno"> 4443</span>Property(<span class="keyword">const</span> std::string&amp; property_name,</div>
<div class="line"><a id="l04444" name="l04444"></a><span class="lineno"> 4444</span>         PropertyType (Class::*property)() <span class="keyword">const</span>&amp;,</div>
<div class="line"><a id="l04445" name="l04445"></a><span class="lineno"> 4445</span>         <span class="keyword">const</span> PropertyMatcher&amp; matcher) {</div>
<div class="line"><a id="l04446" name="l04446"></a><span class="lineno"> 4446</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04447" name="l04447"></a><span class="lineno"> 4447</span>      internal::PropertyMatcher&lt;Class, PropertyType,</div>
<div class="line"><a id="l04448" name="l04448"></a><span class="lineno"> 4448</span>                                PropertyType (Class::*)() <span class="keyword">const</span>&amp;&gt;(</div>
<div class="line"><a id="l04449" name="l04449"></a><span class="lineno"> 4449</span>          property_name, property, MatcherCast&lt;const PropertyType&amp;&gt;(matcher)));</div>
<div class="line"><a id="l04450" name="l04450"></a><span class="lineno"> 4450</span>}</div>
<div class="line"><a id="l04451" name="l04451"></a><span class="lineno"> 4451</span> </div>
<div class="line"><a id="l04452" name="l04452"></a><span class="lineno"> 4452</span><span class="comment">// Creates a matcher that matches an object if and only if the result of</span></div>
<div class="line"><a id="l04453" name="l04453"></a><span class="lineno"> 4453</span><span class="comment">// applying a callable to x matches &#39;matcher&#39;. For example,</span></div>
<div class="line"><a id="l04454" name="l04454"></a><span class="lineno"> 4454</span><span class="comment">//   ResultOf(f, StartsWith(&quot;hi&quot;))</span></div>
<div class="line"><a id="l04455" name="l04455"></a><span class="lineno"> 4455</span><span class="comment">// matches a Foo object x if and only if f(x) starts with &quot;hi&quot;.</span></div>
<div class="line"><a id="l04456" name="l04456"></a><span class="lineno"> 4456</span><span class="comment">// `callable` parameter can be a function, function pointer, or a functor. It is</span></div>
<div class="line"><a id="l04457" name="l04457"></a><span class="lineno"> 4457</span><span class="comment">// required to keep no state affecting the results of the calls on it and make</span></div>
<div class="line"><a id="l04458" name="l04458"></a><span class="lineno"> 4458</span><span class="comment">// no assumptions about how many calls will be made. Any state it keeps must be</span></div>
<div class="line"><a id="l04459" name="l04459"></a><span class="lineno"> 4459</span><span class="comment">// protected from the concurrent access.</span></div>
<div class="line"><a id="l04460" name="l04460"></a><span class="lineno"> 4460</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Callable, <span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l04461" name="l04461"></a><span class="lineno"> 4461</span>internal::ResultOfMatcher&lt;Callable, InnerMatcher&gt; ResultOf(</div>
<div class="line"><a id="l04462" name="l04462"></a><span class="lineno"> 4462</span>    Callable callable, InnerMatcher matcher) {</div>
<div class="line"><a id="l04463" name="l04463"></a><span class="lineno"> 4463</span>  <span class="keywordflow">return</span> internal::ResultOfMatcher&lt;Callable, InnerMatcher&gt;(std::move(callable),</div>
<div class="line"><a id="l04464" name="l04464"></a><span class="lineno"> 4464</span>                                                           std::move(matcher));</div>
<div class="line"><a id="l04465" name="l04465"></a><span class="lineno"> 4465</span>}</div>
<div class="line"><a id="l04466" name="l04466"></a><span class="lineno"> 4466</span> </div>
<div class="line"><a id="l04467" name="l04467"></a><span class="lineno"> 4467</span><span class="comment">// Same as ResultOf() above, but also takes a description of the `callable`</span></div>
<div class="line"><a id="l04468" name="l04468"></a><span class="lineno"> 4468</span><span class="comment">// result to provide better error messages.</span></div>
<div class="line"><a id="l04469" name="l04469"></a><span class="lineno"> 4469</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Callable, <span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l04470" name="l04470"></a><span class="lineno"> 4470</span>internal::ResultOfMatcher&lt;Callable, InnerMatcher&gt; ResultOf(</div>
<div class="line"><a id="l04471" name="l04471"></a><span class="lineno"> 4471</span>    <span class="keyword">const</span> std::string&amp; result_description, Callable callable,</div>
<div class="line"><a id="l04472" name="l04472"></a><span class="lineno"> 4472</span>    InnerMatcher matcher) {</div>
<div class="line"><a id="l04473" name="l04473"></a><span class="lineno"> 4473</span>  <span class="keywordflow">return</span> internal::ResultOfMatcher&lt;Callable, InnerMatcher&gt;(</div>
<div class="line"><a id="l04474" name="l04474"></a><span class="lineno"> 4474</span>      result_description, std::move(callable), std::move(matcher));</div>
<div class="line"><a id="l04475" name="l04475"></a><span class="lineno"> 4475</span>}</div>
<div class="line"><a id="l04476" name="l04476"></a><span class="lineno"> 4476</span> </div>
<div class="line"><a id="l04477" name="l04477"></a><span class="lineno"> 4477</span><span class="comment">// String matchers.</span></div>
<div class="line"><a id="l04478" name="l04478"></a><span class="lineno"> 4478</span> </div>
<div class="line"><a id="l04479" name="l04479"></a><span class="lineno"> 4479</span><span class="comment">// Matches a string equal to str.</span></div>
<div class="line"><a id="l04480" name="l04480"></a><span class="lineno"> 4480</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04481" name="l04481"></a><span class="lineno"> 4481</span>PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::string&gt;&gt; StrEq(</div>
<div class="line"><a id="l04482" name="l04482"></a><span class="lineno"> 4482</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; str) {</div>
<div class="line"><a id="l04483" name="l04483"></a><span class="lineno"> 4483</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04484" name="l04484"></a><span class="lineno"> 4484</span>      internal::StrEqualityMatcher&lt;std::string&gt;(std::string(str), <span class="keyword">true</span>, <span class="keyword">true</span>));</div>
<div class="line"><a id="l04485" name="l04485"></a><span class="lineno"> 4485</span>}</div>
<div class="line"><a id="l04486" name="l04486"></a><span class="lineno"> 4486</span> </div>
<div class="line"><a id="l04487" name="l04487"></a><span class="lineno"> 4487</span><span class="comment">// Matches a string not equal to str.</span></div>
<div class="line"><a id="l04488" name="l04488"></a><span class="lineno"> 4488</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04489" name="l04489"></a><span class="lineno"> 4489</span>PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::string&gt;&gt; StrNe(</div>
<div class="line"><a id="l04490" name="l04490"></a><span class="lineno"> 4490</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; str) {</div>
<div class="line"><a id="l04491" name="l04491"></a><span class="lineno"> 4491</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04492" name="l04492"></a><span class="lineno"> 4492</span>      internal::StrEqualityMatcher&lt;std::string&gt;(std::string(str), <span class="keyword">false</span>, <span class="keyword">true</span>));</div>
<div class="line"><a id="l04493" name="l04493"></a><span class="lineno"> 4493</span>}</div>
<div class="line"><a id="l04494" name="l04494"></a><span class="lineno"> 4494</span> </div>
<div class="line"><a id="l04495" name="l04495"></a><span class="lineno"> 4495</span><span class="comment">// Matches a string equal to str, ignoring case.</span></div>
<div class="line"><a id="l04496" name="l04496"></a><span class="lineno"> 4496</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04497" name="l04497"></a><span class="lineno"> 4497</span>PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::string&gt;&gt; StrCaseEq(</div>
<div class="line"><a id="l04498" name="l04498"></a><span class="lineno"> 4498</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; str) {</div>
<div class="line"><a id="l04499" name="l04499"></a><span class="lineno"> 4499</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04500" name="l04500"></a><span class="lineno"> 4500</span>      internal::StrEqualityMatcher&lt;std::string&gt;(std::string(str), <span class="keyword">true</span>, <span class="keyword">false</span>));</div>
<div class="line"><a id="l04501" name="l04501"></a><span class="lineno"> 4501</span>}</div>
<div class="line"><a id="l04502" name="l04502"></a><span class="lineno"> 4502</span> </div>
<div class="line"><a id="l04503" name="l04503"></a><span class="lineno"> 4503</span><span class="comment">// Matches a string not equal to str, ignoring case.</span></div>
<div class="line"><a id="l04504" name="l04504"></a><span class="lineno"> 4504</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04505" name="l04505"></a><span class="lineno"> 4505</span>PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::string&gt;&gt; StrCaseNe(</div>
<div class="line"><a id="l04506" name="l04506"></a><span class="lineno"> 4506</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; str) {</div>
<div class="line"><a id="l04507" name="l04507"></a><span class="lineno"> 4507</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::StrEqualityMatcher&lt;std::string&gt;(</div>
<div class="line"><a id="l04508" name="l04508"></a><span class="lineno"> 4508</span>      std::string(str), <span class="keyword">false</span>, <span class="keyword">false</span>));</div>
<div class="line"><a id="l04509" name="l04509"></a><span class="lineno"> 4509</span>}</div>
<div class="line"><a id="l04510" name="l04510"></a><span class="lineno"> 4510</span> </div>
<div class="line"><a id="l04511" name="l04511"></a><span class="lineno"> 4511</span><span class="comment">// Creates a matcher that matches any string, std::string, or C string</span></div>
<div class="line"><a id="l04512" name="l04512"></a><span class="lineno"> 4512</span><span class="comment">// that contains the given substring.</span></div>
<div class="line"><a id="l04513" name="l04513"></a><span class="lineno"> 4513</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04514" name="l04514"></a><span class="lineno"> 4514</span>PolymorphicMatcher&lt;internal::HasSubstrMatcher&lt;std::string&gt;&gt; HasSubstr(</div>
<div class="line"><a id="l04515" name="l04515"></a><span class="lineno"> 4515</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; substring) {</div>
<div class="line"><a id="l04516" name="l04516"></a><span class="lineno"> 4516</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04517" name="l04517"></a><span class="lineno"> 4517</span>      internal::HasSubstrMatcher&lt;std::string&gt;(std::string(substring)));</div>
<div class="line"><a id="l04518" name="l04518"></a><span class="lineno"> 4518</span>}</div>
<div class="line"><a id="l04519" name="l04519"></a><span class="lineno"> 4519</span> </div>
<div class="line"><a id="l04520" name="l04520"></a><span class="lineno"> 4520</span><span class="comment">// Matches a string that starts with &#39;prefix&#39; (case-sensitive).</span></div>
<div class="line"><a id="l04521" name="l04521"></a><span class="lineno"> 4521</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04522" name="l04522"></a><span class="lineno"> 4522</span>PolymorphicMatcher&lt;internal::StartsWithMatcher&lt;std::string&gt;&gt; StartsWith(</div>
<div class="line"><a id="l04523" name="l04523"></a><span class="lineno"> 4523</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; prefix) {</div>
<div class="line"><a id="l04524" name="l04524"></a><span class="lineno"> 4524</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04525" name="l04525"></a><span class="lineno"> 4525</span>      internal::StartsWithMatcher&lt;std::string&gt;(std::string(prefix)));</div>
<div class="line"><a id="l04526" name="l04526"></a><span class="lineno"> 4526</span>}</div>
<div class="line"><a id="l04527" name="l04527"></a><span class="lineno"> 4527</span> </div>
<div class="line"><a id="l04528" name="l04528"></a><span class="lineno"> 4528</span><span class="comment">// Matches a string that ends with &#39;suffix&#39; (case-sensitive).</span></div>
<div class="line"><a id="l04529" name="l04529"></a><span class="lineno"> 4529</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T = std::<span class="keywordtype">string</span>&gt;</div>
<div class="line"><a id="l04530" name="l04530"></a><span class="lineno"> 4530</span>PolymorphicMatcher&lt;internal::EndsWithMatcher&lt;std::string&gt;&gt; EndsWith(</div>
<div class="line"><a id="l04531" name="l04531"></a><span class="lineno"> 4531</span>    <span class="keyword">const</span> internal::StringLike&lt;T&gt;&amp; suffix) {</div>
<div class="line"><a id="l04532" name="l04532"></a><span class="lineno"> 4532</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04533" name="l04533"></a><span class="lineno"> 4533</span>      internal::EndsWithMatcher&lt;std::string&gt;(std::string(suffix)));</div>
<div class="line"><a id="l04534" name="l04534"></a><span class="lineno"> 4534</span>}</div>
<div class="line"><a id="l04535" name="l04535"></a><span class="lineno"> 4535</span> </div>
<div class="line"><a id="l04536" name="l04536"></a><span class="lineno"> 4536</span><span class="preprocessor">#if GTEST_HAS_STD_WSTRING</span></div>
<div class="line"><a id="l04537" name="l04537"></a><span class="lineno"> 4537</span><span class="comment">// Wide string matchers.</span></div>
<div class="line"><a id="l04538" name="l04538"></a><span class="lineno"> 4538</span> </div>
<div class="line"><a id="l04539" name="l04539"></a><span class="lineno"> 4539</span><span class="comment">// Matches a string equal to str.</span></div>
<div class="line"><a id="l04540" name="l04540"></a><span class="lineno"> 4540</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::wstring&gt;&gt; StrEq(</div>
<div class="line"><a id="l04541" name="l04541"></a><span class="lineno"> 4541</span>    <span class="keyword">const</span> std::wstring&amp; str) {</div>
<div class="line"><a id="l04542" name="l04542"></a><span class="lineno"> 4542</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04543" name="l04543"></a><span class="lineno"> 4543</span>      internal::StrEqualityMatcher&lt;std::wstring&gt;(str, <span class="keyword">true</span>, <span class="keyword">true</span>));</div>
<div class="line"><a id="l04544" name="l04544"></a><span class="lineno"> 4544</span>}</div>
<div class="line"><a id="l04545" name="l04545"></a><span class="lineno"> 4545</span> </div>
<div class="line"><a id="l04546" name="l04546"></a><span class="lineno"> 4546</span><span class="comment">// Matches a string not equal to str.</span></div>
<div class="line"><a id="l04547" name="l04547"></a><span class="lineno"> 4547</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::wstring&gt;&gt; StrNe(</div>
<div class="line"><a id="l04548" name="l04548"></a><span class="lineno"> 4548</span>    <span class="keyword">const</span> std::wstring&amp; str) {</div>
<div class="line"><a id="l04549" name="l04549"></a><span class="lineno"> 4549</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04550" name="l04550"></a><span class="lineno"> 4550</span>      internal::StrEqualityMatcher&lt;std::wstring&gt;(str, <span class="keyword">false</span>, <span class="keyword">true</span>));</div>
<div class="line"><a id="l04551" name="l04551"></a><span class="lineno"> 4551</span>}</div>
<div class="line"><a id="l04552" name="l04552"></a><span class="lineno"> 4552</span> </div>
<div class="line"><a id="l04553" name="l04553"></a><span class="lineno"> 4553</span><span class="comment">// Matches a string equal to str, ignoring case.</span></div>
<div class="line"><a id="l04554" name="l04554"></a><span class="lineno"> 4554</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::wstring&gt;&gt; StrCaseEq(</div>
<div class="line"><a id="l04555" name="l04555"></a><span class="lineno"> 4555</span>    <span class="keyword">const</span> std::wstring&amp; str) {</div>
<div class="line"><a id="l04556" name="l04556"></a><span class="lineno"> 4556</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04557" name="l04557"></a><span class="lineno"> 4557</span>      internal::StrEqualityMatcher&lt;std::wstring&gt;(str, <span class="keyword">true</span>, <span class="keyword">false</span>));</div>
<div class="line"><a id="l04558" name="l04558"></a><span class="lineno"> 4558</span>}</div>
<div class="line"><a id="l04559" name="l04559"></a><span class="lineno"> 4559</span> </div>
<div class="line"><a id="l04560" name="l04560"></a><span class="lineno"> 4560</span><span class="comment">// Matches a string not equal to str, ignoring case.</span></div>
<div class="line"><a id="l04561" name="l04561"></a><span class="lineno"> 4561</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::StrEqualityMatcher&lt;std::wstring&gt;&gt; StrCaseNe(</div>
<div class="line"><a id="l04562" name="l04562"></a><span class="lineno"> 4562</span>    <span class="keyword">const</span> std::wstring&amp; str) {</div>
<div class="line"><a id="l04563" name="l04563"></a><span class="lineno"> 4563</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04564" name="l04564"></a><span class="lineno"> 4564</span>      internal::StrEqualityMatcher&lt;std::wstring&gt;(str, <span class="keyword">false</span>, <span class="keyword">false</span>));</div>
<div class="line"><a id="l04565" name="l04565"></a><span class="lineno"> 4565</span>}</div>
<div class="line"><a id="l04566" name="l04566"></a><span class="lineno"> 4566</span> </div>
<div class="line"><a id="l04567" name="l04567"></a><span class="lineno"> 4567</span><span class="comment">// Creates a matcher that matches any ::wstring, std::wstring, or C wide string</span></div>
<div class="line"><a id="l04568" name="l04568"></a><span class="lineno"> 4568</span><span class="comment">// that contains the given substring.</span></div>
<div class="line"><a id="l04569" name="l04569"></a><span class="lineno"> 4569</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::HasSubstrMatcher&lt;std::wstring&gt;&gt; HasSubstr(</div>
<div class="line"><a id="l04570" name="l04570"></a><span class="lineno"> 4570</span>    <span class="keyword">const</span> std::wstring&amp; substring) {</div>
<div class="line"><a id="l04571" name="l04571"></a><span class="lineno"> 4571</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04572" name="l04572"></a><span class="lineno"> 4572</span>      internal::HasSubstrMatcher&lt;std::wstring&gt;(substring));</div>
<div class="line"><a id="l04573" name="l04573"></a><span class="lineno"> 4573</span>}</div>
<div class="line"><a id="l04574" name="l04574"></a><span class="lineno"> 4574</span> </div>
<div class="line"><a id="l04575" name="l04575"></a><span class="lineno"> 4575</span><span class="comment">// Matches a string that starts with &#39;prefix&#39; (case-sensitive).</span></div>
<div class="line"><a id="l04576" name="l04576"></a><span class="lineno"> 4576</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::StartsWithMatcher&lt;std::wstring&gt;&gt; StartsWith(</div>
<div class="line"><a id="l04577" name="l04577"></a><span class="lineno"> 4577</span>    <span class="keyword">const</span> std::wstring&amp; prefix) {</div>
<div class="line"><a id="l04578" name="l04578"></a><span class="lineno"> 4578</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04579" name="l04579"></a><span class="lineno"> 4579</span>      internal::StartsWithMatcher&lt;std::wstring&gt;(prefix));</div>
<div class="line"><a id="l04580" name="l04580"></a><span class="lineno"> 4580</span>}</div>
<div class="line"><a id="l04581" name="l04581"></a><span class="lineno"> 4581</span> </div>
<div class="line"><a id="l04582" name="l04582"></a><span class="lineno"> 4582</span><span class="comment">// Matches a string that ends with &#39;suffix&#39; (case-sensitive).</span></div>
<div class="line"><a id="l04583" name="l04583"></a><span class="lineno"> 4583</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::EndsWithMatcher&lt;std::wstring&gt;&gt; EndsWith(</div>
<div class="line"><a id="l04584" name="l04584"></a><span class="lineno"> 4584</span>    <span class="keyword">const</span> std::wstring&amp; suffix) {</div>
<div class="line"><a id="l04585" name="l04585"></a><span class="lineno"> 4585</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l04586" name="l04586"></a><span class="lineno"> 4586</span>      internal::EndsWithMatcher&lt;std::wstring&gt;(suffix));</div>
<div class="line"><a id="l04587" name="l04587"></a><span class="lineno"> 4587</span>}</div>
<div class="line"><a id="l04588" name="l04588"></a><span class="lineno"> 4588</span> </div>
<div class="line"><a id="l04589" name="l04589"></a><span class="lineno"> 4589</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_STD_WSTRING</span></div>
<div class="line"><a id="l04590" name="l04590"></a><span class="lineno"> 4590</span> </div>
<div class="line"><a id="l04591" name="l04591"></a><span class="lineno"> 4591</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04592" name="l04592"></a><span class="lineno"> 4592</span><span class="comment">// first field == the second field.</span></div>
<div class="line"><a id="l04593" name="l04593"></a><span class="lineno"> 4593</span><span class="keyword">inline</span> internal::Eq2Matcher Eq() { <span class="keywordflow">return</span> internal::Eq2Matcher(); }</div>
<div class="line"><a id="l04594" name="l04594"></a><span class="lineno"> 4594</span> </div>
<div class="line"><a id="l04595" name="l04595"></a><span class="lineno"> 4595</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04596" name="l04596"></a><span class="lineno"> 4596</span><span class="comment">// first field &gt;= the second field.</span></div>
<div class="line"><a id="l04597" name="l04597"></a><span class="lineno"> 4597</span><span class="keyword">inline</span> internal::Ge2Matcher Ge() { <span class="keywordflow">return</span> internal::Ge2Matcher(); }</div>
<div class="line"><a id="l04598" name="l04598"></a><span class="lineno"> 4598</span> </div>
<div class="line"><a id="l04599" name="l04599"></a><span class="lineno"> 4599</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04600" name="l04600"></a><span class="lineno"> 4600</span><span class="comment">// first field &gt; the second field.</span></div>
<div class="line"><a id="l04601" name="l04601"></a><span class="lineno"> 4601</span><span class="keyword">inline</span> internal::Gt2Matcher Gt() { <span class="keywordflow">return</span> internal::Gt2Matcher(); }</div>
<div class="line"><a id="l04602" name="l04602"></a><span class="lineno"> 4602</span> </div>
<div class="line"><a id="l04603" name="l04603"></a><span class="lineno"> 4603</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04604" name="l04604"></a><span class="lineno"> 4604</span><span class="comment">// first field &lt;= the second field.</span></div>
<div class="line"><a id="l04605" name="l04605"></a><span class="lineno"> 4605</span><span class="keyword">inline</span> internal::Le2Matcher Le() { <span class="keywordflow">return</span> internal::Le2Matcher(); }</div>
<div class="line"><a id="l04606" name="l04606"></a><span class="lineno"> 4606</span> </div>
<div class="line"><a id="l04607" name="l04607"></a><span class="lineno"> 4607</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04608" name="l04608"></a><span class="lineno"> 4608</span><span class="comment">// first field &lt; the second field.</span></div>
<div class="line"><a id="l04609" name="l04609"></a><span class="lineno"> 4609</span><span class="keyword">inline</span> internal::Lt2Matcher Lt() { <span class="keywordflow">return</span> internal::Lt2Matcher(); }</div>
<div class="line"><a id="l04610" name="l04610"></a><span class="lineno"> 4610</span> </div>
<div class="line"><a id="l04611" name="l04611"></a><span class="lineno"> 4611</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where the</span></div>
<div class="line"><a id="l04612" name="l04612"></a><span class="lineno"> 4612</span><span class="comment">// first field != the second field.</span></div>
<div class="line"><a id="l04613" name="l04613"></a><span class="lineno"> 4613</span><span class="keyword">inline</span> internal::Ne2Matcher Ne() { <span class="keywordflow">return</span> internal::Ne2Matcher(); }</div>
<div class="line"><a id="l04614" name="l04614"></a><span class="lineno"> 4614</span> </div>
<div class="line"><a id="l04615" name="l04615"></a><span class="lineno"> 4615</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04616" name="l04616"></a><span class="lineno"> 4616</span><span class="comment">// FloatEq(first field) matches the second field.</span></div>
<div class="line"><a id="l04617" name="l04617"></a><span class="lineno"> 4617</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;float&gt; FloatEq() {</div>
<div class="line"><a id="l04618" name="l04618"></a><span class="lineno"> 4618</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;float&gt;();</div>
<div class="line"><a id="l04619" name="l04619"></a><span class="lineno"> 4619</span>}</div>
<div class="line"><a id="l04620" name="l04620"></a><span class="lineno"> 4620</span> </div>
<div class="line"><a id="l04621" name="l04621"></a><span class="lineno"> 4621</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04622" name="l04622"></a><span class="lineno"> 4622</span><span class="comment">// DoubleEq(first field) matches the second field.</span></div>
<div class="line"><a id="l04623" name="l04623"></a><span class="lineno"> 4623</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;double&gt; DoubleEq() {</div>
<div class="line"><a id="l04624" name="l04624"></a><span class="lineno"> 4624</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;double&gt;();</div>
<div class="line"><a id="l04625" name="l04625"></a><span class="lineno"> 4625</span>}</div>
<div class="line"><a id="l04626" name="l04626"></a><span class="lineno"> 4626</span> </div>
<div class="line"><a id="l04627" name="l04627"></a><span class="lineno"> 4627</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04628" name="l04628"></a><span class="lineno"> 4628</span><span class="comment">// FloatEq(first field) matches the second field with NaN equality.</span></div>
<div class="line"><a id="l04629" name="l04629"></a><span class="lineno"> 4629</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;float&gt; NanSensitiveFloatEq() {</div>
<div class="line"><a id="l04630" name="l04630"></a><span class="lineno"> 4630</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;float&gt;(<span class="keyword">true</span>);</div>
<div class="line"><a id="l04631" name="l04631"></a><span class="lineno"> 4631</span>}</div>
<div class="line"><a id="l04632" name="l04632"></a><span class="lineno"> 4632</span> </div>
<div class="line"><a id="l04633" name="l04633"></a><span class="lineno"> 4633</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04634" name="l04634"></a><span class="lineno"> 4634</span><span class="comment">// DoubleEq(first field) matches the second field with NaN equality.</span></div>
<div class="line"><a id="l04635" name="l04635"></a><span class="lineno"> 4635</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;double&gt; NanSensitiveDoubleEq() {</div>
<div class="line"><a id="l04636" name="l04636"></a><span class="lineno"> 4636</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;double&gt;(<span class="keyword">true</span>);</div>
<div class="line"><a id="l04637" name="l04637"></a><span class="lineno"> 4637</span>}</div>
<div class="line"><a id="l04638" name="l04638"></a><span class="lineno"> 4638</span> </div>
<div class="line"><a id="l04639" name="l04639"></a><span class="lineno"> 4639</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04640" name="l04640"></a><span class="lineno"> 4640</span><span class="comment">// FloatNear(first field, max_abs_error) matches the second field.</span></div>
<div class="line"><a id="l04641" name="l04641"></a><span class="lineno"> 4641</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;float&gt; FloatNear(<span class="keywordtype">float</span> max_abs_error) {</div>
<div class="line"><a id="l04642" name="l04642"></a><span class="lineno"> 4642</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;float&gt;(max_abs_error);</div>
<div class="line"><a id="l04643" name="l04643"></a><span class="lineno"> 4643</span>}</div>
<div class="line"><a id="l04644" name="l04644"></a><span class="lineno"> 4644</span> </div>
<div class="line"><a id="l04645" name="l04645"></a><span class="lineno"> 4645</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04646" name="l04646"></a><span class="lineno"> 4646</span><span class="comment">// DoubleNear(first field, max_abs_error) matches the second field.</span></div>
<div class="line"><a id="l04647" name="l04647"></a><span class="lineno"> 4647</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;double&gt; DoubleNear(<span class="keywordtype">double</span> max_abs_error) {</div>
<div class="line"><a id="l04648" name="l04648"></a><span class="lineno"> 4648</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;double&gt;(max_abs_error);</div>
<div class="line"><a id="l04649" name="l04649"></a><span class="lineno"> 4649</span>}</div>
<div class="line"><a id="l04650" name="l04650"></a><span class="lineno"> 4650</span> </div>
<div class="line"><a id="l04651" name="l04651"></a><span class="lineno"> 4651</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04652" name="l04652"></a><span class="lineno"> 4652</span><span class="comment">// FloatNear(first field, max_abs_error) matches the second field with NaN</span></div>
<div class="line"><a id="l04653" name="l04653"></a><span class="lineno"> 4653</span><span class="comment">// equality.</span></div>
<div class="line"><a id="l04654" name="l04654"></a><span class="lineno"> 4654</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;float&gt; NanSensitiveFloatNear(</div>
<div class="line"><a id="l04655" name="l04655"></a><span class="lineno"> 4655</span>    <span class="keywordtype">float</span> max_abs_error) {</div>
<div class="line"><a id="l04656" name="l04656"></a><span class="lineno"> 4656</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;float&gt;(max_abs_error, <span class="keyword">true</span>);</div>
<div class="line"><a id="l04657" name="l04657"></a><span class="lineno"> 4657</span>}</div>
<div class="line"><a id="l04658" name="l04658"></a><span class="lineno"> 4658</span> </div>
<div class="line"><a id="l04659" name="l04659"></a><span class="lineno"> 4659</span><span class="comment">// Creates a polymorphic matcher that matches a 2-tuple where</span></div>
<div class="line"><a id="l04660" name="l04660"></a><span class="lineno"> 4660</span><span class="comment">// DoubleNear(first field, max_abs_error) matches the second field with NaN</span></div>
<div class="line"><a id="l04661" name="l04661"></a><span class="lineno"> 4661</span><span class="comment">// equality.</span></div>
<div class="line"><a id="l04662" name="l04662"></a><span class="lineno"> 4662</span><span class="keyword">inline</span> internal::FloatingEq2Matcher&lt;double&gt; NanSensitiveDoubleNear(</div>
<div class="line"><a id="l04663" name="l04663"></a><span class="lineno"> 4663</span>    <span class="keywordtype">double</span> max_abs_error) {</div>
<div class="line"><a id="l04664" name="l04664"></a><span class="lineno"> 4664</span>  <span class="keywordflow">return</span> internal::FloatingEq2Matcher&lt;double&gt;(max_abs_error, <span class="keyword">true</span>);</div>
<div class="line"><a id="l04665" name="l04665"></a><span class="lineno"> 4665</span>}</div>
<div class="line"><a id="l04666" name="l04666"></a><span class="lineno"> 4666</span> </div>
<div class="line"><a id="l04667" name="l04667"></a><span class="lineno"> 4667</span><span class="comment">// Creates a matcher that matches any value of type T that m doesn&#39;t</span></div>
<div class="line"><a id="l04668" name="l04668"></a><span class="lineno"> 4668</span><span class="comment">// match.</span></div>
<div class="line"><a id="l04669" name="l04669"></a><span class="lineno"> 4669</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l04670" name="l04670"></a><span class="lineno"> 4670</span><span class="keyword">inline</span> internal::NotMatcher&lt;InnerMatcher&gt; Not(InnerMatcher m) {</div>
<div class="line"><a id="l04671" name="l04671"></a><span class="lineno"> 4671</span>  <span class="keywordflow">return</span> internal::NotMatcher&lt;InnerMatcher&gt;(m);</div>
<div class="line"><a id="l04672" name="l04672"></a><span class="lineno"> 4672</span>}</div>
<div class="line"><a id="l04673" name="l04673"></a><span class="lineno"> 4673</span> </div>
<div class="line"><a id="l04674" name="l04674"></a><span class="lineno"> 4674</span><span class="comment">// Returns a matcher that matches anything that satisfies the given</span></div>
<div class="line"><a id="l04675" name="l04675"></a><span class="lineno"> 4675</span><span class="comment">// predicate.  The predicate can be any unary function or functor</span></div>
<div class="line"><a id="l04676" name="l04676"></a><span class="lineno"> 4676</span><span class="comment">// whose return type can be implicitly converted to bool.</span></div>
<div class="line"><a id="l04677" name="l04677"></a><span class="lineno"> 4677</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Predicate&gt;</div>
<div class="line"><a id="l04678" name="l04678"></a><span class="lineno"> 4678</span><span class="keyword">inline</span> PolymorphicMatcher&lt;internal::TrulyMatcher&lt;Predicate&gt;&gt; Truly(</div>
<div class="line"><a id="l04679" name="l04679"></a><span class="lineno"> 4679</span>    Predicate pred) {</div>
<div class="line"><a id="l04680" name="l04680"></a><span class="lineno"> 4680</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::TrulyMatcher&lt;Predicate&gt;(pred));</div>
<div class="line"><a id="l04681" name="l04681"></a><span class="lineno"> 4681</span>}</div>
<div class="line"><a id="l04682" name="l04682"></a><span class="lineno"> 4682</span> </div>
<div class="line"><a id="l04683" name="l04683"></a><span class="lineno"> 4683</span><span class="comment">// Returns a matcher that matches the container size. The container must</span></div>
<div class="line"><a id="l04684" name="l04684"></a><span class="lineno"> 4684</span><span class="comment">// support both size() and size_type which all STL-like containers provide.</span></div>
<div class="line"><a id="l04685" name="l04685"></a><span class="lineno"> 4685</span><span class="comment">// Note that the parameter &#39;size&#39; can be a value of type size_type as well as</span></div>
<div class="line"><a id="l04686" name="l04686"></a><span class="lineno"> 4686</span><span class="comment">// matcher. For instance:</span></div>
<div class="line"><a id="l04687" name="l04687"></a><span class="lineno"> 4687</span><span class="comment">//   EXPECT_THAT(container, SizeIs(2));     // Checks container has 2 elements.</span></div>
<div class="line"><a id="l04688" name="l04688"></a><span class="lineno"> 4688</span><span class="comment">//   EXPECT_THAT(container, SizeIs(Le(2));  // Checks container has at most 2.</span></div>
<div class="line"><a id="l04689" name="l04689"></a><span class="lineno"> 4689</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> SizeMatcher&gt;</div>
<div class="line"><a id="l04690" name="l04690"></a><span class="lineno"> 4690</span><span class="keyword">inline</span> internal::SizeIsMatcher&lt;SizeMatcher&gt; SizeIs(</div>
<div class="line"><a id="l04691" name="l04691"></a><span class="lineno"> 4691</span>    <span class="keyword">const</span> SizeMatcher&amp; size_matcher) {</div>
<div class="line"><a id="l04692" name="l04692"></a><span class="lineno"> 4692</span>  <span class="keywordflow">return</span> internal::SizeIsMatcher&lt;SizeMatcher&gt;(size_matcher);</div>
<div class="line"><a id="l04693" name="l04693"></a><span class="lineno"> 4693</span>}</div>
<div class="line"><a id="l04694" name="l04694"></a><span class="lineno"> 4694</span> </div>
<div class="line"><a id="l04695" name="l04695"></a><span class="lineno"> 4695</span><span class="comment">// Returns a matcher that matches the distance between the container&#39;s begin()</span></div>
<div class="line"><a id="l04696" name="l04696"></a><span class="lineno"> 4696</span><span class="comment">// iterator and its end() iterator, i.e. the size of the container. This matcher</span></div>
<div class="line"><a id="l04697" name="l04697"></a><span class="lineno"> 4697</span><span class="comment">// can be used instead of SizeIs with containers such as std::forward_list which</span></div>
<div class="line"><a id="l04698" name="l04698"></a><span class="lineno"> 4698</span><span class="comment">// do not implement size(). The container must provide const_iterator (with</span></div>
<div class="line"><a id="l04699" name="l04699"></a><span class="lineno"> 4699</span><span class="comment">// valid iterator_traits), begin() and end().</span></div>
<div class="line"><a id="l04700" name="l04700"></a><span class="lineno"> 4700</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> DistanceMatcher&gt;</div>
<div class="line"><a id="l04701" name="l04701"></a><span class="lineno"> 4701</span><span class="keyword">inline</span> internal::BeginEndDistanceIsMatcher&lt;DistanceMatcher&gt; BeginEndDistanceIs(</div>
<div class="line"><a id="l04702" name="l04702"></a><span class="lineno"> 4702</span>    <span class="keyword">const</span> DistanceMatcher&amp; distance_matcher) {</div>
<div class="line"><a id="l04703" name="l04703"></a><span class="lineno"> 4703</span>  <span class="keywordflow">return</span> internal::BeginEndDistanceIsMatcher&lt;DistanceMatcher&gt;(distance_matcher);</div>
<div class="line"><a id="l04704" name="l04704"></a><span class="lineno"> 4704</span>}</div>
<div class="line"><a id="l04705" name="l04705"></a><span class="lineno"> 4705</span> </div>
<div class="line"><a id="l04706" name="l04706"></a><span class="lineno"> 4706</span><span class="comment">// Returns a matcher that matches an equal container.</span></div>
<div class="line"><a id="l04707" name="l04707"></a><span class="lineno"> 4707</span><span class="comment">// This matcher behaves like Eq(), but in the event of mismatch lists the</span></div>
<div class="line"><a id="l04708" name="l04708"></a><span class="lineno"> 4708</span><span class="comment">// values that are included in one container but not the other. (Duplicate</span></div>
<div class="line"><a id="l04709" name="l04709"></a><span class="lineno"> 4709</span><span class="comment">// values and order differences are not explained.)</span></div>
<div class="line"><a id="l04710" name="l04710"></a><span class="lineno"> 4710</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04711" name="l04711"></a><span class="lineno"> 4711</span><span class="keyword">inline</span> PolymorphicMatcher&lt;</div>
<div class="line"><a id="l04712" name="l04712"></a><span class="lineno"> 4712</span>    internal::ContainerEqMatcher&lt;typename std::remove_const&lt;Container&gt;::type&gt;&gt;</div>
<div class="line"><a id="l04713" name="l04713"></a><span class="lineno"> 4713</span>ContainerEq(<span class="keyword">const</span> Container&amp; rhs) {</div>
<div class="line"><a id="l04714" name="l04714"></a><span class="lineno"> 4714</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::ContainerEqMatcher&lt;Container&gt;(rhs));</div>
<div class="line"><a id="l04715" name="l04715"></a><span class="lineno"> 4715</span>}</div>
<div class="line"><a id="l04716" name="l04716"></a><span class="lineno"> 4716</span> </div>
<div class="line"><a id="l04717" name="l04717"></a><span class="lineno"> 4717</span><span class="comment">// Returns a matcher that matches a container that, when sorted using</span></div>
<div class="line"><a id="l04718" name="l04718"></a><span class="lineno"> 4718</span><span class="comment">// the given comparator, matches container_matcher.</span></div>
<div class="line"><a id="l04719" name="l04719"></a><span class="lineno"> 4719</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Comparator, <span class="keyword">typename</span> ContainerMatcher&gt;</div>
<div class="line"><a id="l04720" name="l04720"></a><span class="lineno"> 4720</span><span class="keyword">inline</span> internal::WhenSortedByMatcher&lt;Comparator, ContainerMatcher&gt; WhenSortedBy(</div>
<div class="line"><a id="l04721" name="l04721"></a><span class="lineno"> 4721</span>    <span class="keyword">const</span> Comparator&amp; comparator, <span class="keyword">const</span> ContainerMatcher&amp; container_matcher) {</div>
<div class="line"><a id="l04722" name="l04722"></a><span class="lineno"> 4722</span>  <span class="keywordflow">return</span> internal::WhenSortedByMatcher&lt;Comparator, ContainerMatcher&gt;(</div>
<div class="line"><a id="l04723" name="l04723"></a><span class="lineno"> 4723</span>      comparator, container_matcher);</div>
<div class="line"><a id="l04724" name="l04724"></a><span class="lineno"> 4724</span>}</div>
<div class="line"><a id="l04725" name="l04725"></a><span class="lineno"> 4725</span> </div>
<div class="line"><a id="l04726" name="l04726"></a><span class="lineno"> 4726</span><span class="comment">// Returns a matcher that matches a container that, when sorted using</span></div>
<div class="line"><a id="l04727" name="l04727"></a><span class="lineno"> 4727</span><span class="comment">// the &lt; operator, matches container_matcher.</span></div>
<div class="line"><a id="l04728" name="l04728"></a><span class="lineno"> 4728</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> ContainerMatcher&gt;</div>
<div class="line"><a id="l04729" name="l04729"></a><span class="lineno"> 4729</span><span class="keyword">inline</span> internal::WhenSortedByMatcher&lt;internal::LessComparator, ContainerMatcher&gt;</div>
<div class="line"><a id="l04730" name="l04730"></a><span class="lineno"> 4730</span>WhenSorted(<span class="keyword">const</span> ContainerMatcher&amp; container_matcher) {</div>
<div class="line"><a id="l04731" name="l04731"></a><span class="lineno"> 4731</span>  <span class="keywordflow">return</span> internal::WhenSortedByMatcher&lt;internal::LessComparator,</div>
<div class="line"><a id="l04732" name="l04732"></a><span class="lineno"> 4732</span>                                       ContainerMatcher&gt;(</div>
<div class="line"><a id="l04733" name="l04733"></a><span class="lineno"> 4733</span>      internal::LessComparator(), container_matcher);</div>
<div class="line"><a id="l04734" name="l04734"></a><span class="lineno"> 4734</span>}</div>
<div class="line"><a id="l04735" name="l04735"></a><span class="lineno"> 4735</span> </div>
<div class="line"><a id="l04736" name="l04736"></a><span class="lineno"> 4736</span><span class="comment">// Matches an STL-style container or a native array that contains the</span></div>
<div class="line"><a id="l04737" name="l04737"></a><span class="lineno"> 4737</span><span class="comment">// same number of elements as in rhs, where its i-th element and rhs&#39;s</span></div>
<div class="line"><a id="l04738" name="l04738"></a><span class="lineno"> 4738</span><span class="comment">// i-th element (as a pair) satisfy the given pair matcher, for all i.</span></div>
<div class="line"><a id="l04739" name="l04739"></a><span class="lineno"> 4739</span><span class="comment">// TupleMatcher must be able to be safely cast to Matcher&lt;std::tuple&lt;const</span></div>
<div class="line"><a id="l04740" name="l04740"></a><span class="lineno"> 4740</span><span class="comment">// T1&amp;, const T2&amp;&gt; &gt;, where T1 and T2 are the types of elements in the</span></div>
<div class="line"><a id="l04741" name="l04741"></a><span class="lineno"> 4741</span><span class="comment">// LHS container and the RHS container respectively.</span></div>
<div class="line"><a id="l04742" name="l04742"></a><span class="lineno"> 4742</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> TupleMatcher, <span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04743" name="l04743"></a><span class="lineno"> 4743</span><span class="keyword">inline</span> internal::PointwiseMatcher&lt;TupleMatcher,</div>
<div class="line"><a id="l04744" name="l04744"></a><span class="lineno"> 4744</span>                                  <span class="keyword">typename</span> std::remove_const&lt;Container&gt;::type&gt;</div>
<div class="line"><a id="l04745" name="l04745"></a><span class="lineno"> 4745</span>Pointwise(<span class="keyword">const</span> TupleMatcher&amp; tuple_matcher, <span class="keyword">const</span> Container&amp; rhs) {</div>
<div class="line"><a id="l04746" name="l04746"></a><span class="lineno"> 4746</span>  <span class="keywordflow">return</span> internal::PointwiseMatcher&lt;TupleMatcher, Container&gt;(tuple_matcher,</div>
<div class="line"><a id="l04747" name="l04747"></a><span class="lineno"> 4747</span>                                                             rhs);</div>
<div class="line"><a id="l04748" name="l04748"></a><span class="lineno"> 4748</span>}</div>
<div class="line"><a id="l04749" name="l04749"></a><span class="lineno"> 4749</span> </div>
<div class="line"><a id="l04750" name="l04750"></a><span class="lineno"> 4750</span><span class="comment">// Supports the Pointwise(m, {a, b, c}) syntax.</span></div>
<div class="line"><a id="l04751" name="l04751"></a><span class="lineno"> 4751</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> TupleMatcher, <span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04752" name="l04752"></a><span class="lineno"> 4752</span><span class="keyword">inline</span> internal::PointwiseMatcher&lt;TupleMatcher, std::vector&lt;T&gt;&gt; Pointwise(</div>
<div class="line"><a id="l04753" name="l04753"></a><span class="lineno"> 4753</span>    <span class="keyword">const</span> TupleMatcher&amp; tuple_matcher, std::initializer_list&lt;T&gt; rhs) {</div>
<div class="line"><a id="l04754" name="l04754"></a><span class="lineno"> 4754</span>  <span class="keywordflow">return</span> Pointwise(tuple_matcher, std::vector&lt;T&gt;(rhs));</div>
<div class="line"><a id="l04755" name="l04755"></a><span class="lineno"> 4755</span>}</div>
<div class="line"><a id="l04756" name="l04756"></a><span class="lineno"> 4756</span> </div>
<div class="line"><a id="l04757" name="l04757"></a><span class="lineno"> 4757</span><span class="comment">// UnorderedPointwise(pair_matcher, rhs) matches an STL-style</span></div>
<div class="line"><a id="l04758" name="l04758"></a><span class="lineno"> 4758</span><span class="comment">// container or a native array that contains the same number of</span></div>
<div class="line"><a id="l04759" name="l04759"></a><span class="lineno"> 4759</span><span class="comment">// elements as in rhs, where in some permutation of the container, its</span></div>
<div class="line"><a id="l04760" name="l04760"></a><span class="lineno"> 4760</span><span class="comment">// i-th element and rhs&#39;s i-th element (as a pair) satisfy the given</span></div>
<div class="line"><a id="l04761" name="l04761"></a><span class="lineno"> 4761</span><span class="comment">// pair matcher, for all i.  Tuple2Matcher must be able to be safely</span></div>
<div class="line"><a id="l04762" name="l04762"></a><span class="lineno"> 4762</span><span class="comment">// cast to Matcher&lt;std::tuple&lt;const T1&amp;, const T2&amp;&gt; &gt;, where T1 and T2 are</span></div>
<div class="line"><a id="l04763" name="l04763"></a><span class="lineno"> 4763</span><span class="comment">// the types of elements in the LHS container and the RHS container</span></div>
<div class="line"><a id="l04764" name="l04764"></a><span class="lineno"> 4764</span><span class="comment">// respectively.</span></div>
<div class="line"><a id="l04765" name="l04765"></a><span class="lineno"> 4765</span><span class="comment">//</span></div>
<div class="line"><a id="l04766" name="l04766"></a><span class="lineno"> 4766</span><span class="comment">// This is like Pointwise(pair_matcher, rhs), except that the element</span></div>
<div class="line"><a id="l04767" name="l04767"></a><span class="lineno"> 4767</span><span class="comment">// order doesn&#39;t matter.</span></div>
<div class="line"><a id="l04768" name="l04768"></a><span class="lineno"> 4768</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple2Matcher, <span class="keyword">typename</span> RhsContainer&gt;</div>
<div class="line"><a id="l04769" name="l04769"></a><span class="lineno"> 4769</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04770" name="l04770"></a><span class="lineno"> 4770</span>    <span class="keyword">typename</span> internal::BoundSecondMatcher&lt;</div>
<div class="line"><a id="l04771" name="l04771"></a><span class="lineno"> 4771</span>        Tuple2Matcher,</div>
<div class="line"><a id="l04772" name="l04772"></a><span class="lineno"> 4772</span>        <span class="keyword">typename</span> <a class="code hl_class" href="classtesting_1_1internal_1_1_stl_container_view.html">internal::StlContainerView</a>&lt;</div>
<div class="line"><a id="l04773" name="l04773"></a><span class="lineno"> 4773</span>            <span class="keyword">typename</span> std::remove_const&lt;RhsContainer&gt;::type&gt;::type::value_type&gt;&gt;</div>
<div class="line"><a id="l04774" name="l04774"></a><span class="lineno"> 4774</span>UnorderedPointwise(<span class="keyword">const</span> Tuple2Matcher&amp; tuple2_matcher,</div>
<div class="line"><a id="l04775" name="l04775"></a><span class="lineno"> 4775</span>                   <span class="keyword">const</span> RhsContainer&amp; rhs_container) {</div>
<div class="line"><a id="l04776" name="l04776"></a><span class="lineno"> 4776</span>  <span class="comment">// RhsView allows the same code to handle RhsContainer being a</span></div>
<div class="line"><a id="l04777" name="l04777"></a><span class="lineno"> 4777</span>  <span class="comment">// STL-style container and it being a native C-style array.</span></div>
<div class="line"><a id="l04778" name="l04778"></a><span class="lineno"> 4778</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code hl_class" href="classtesting_1_1internal_1_1_stl_container_view.html">internal::StlContainerView&lt;RhsContainer&gt;</a> RhsView;</div>
<div class="line"><a id="l04779" name="l04779"></a><span class="lineno"> 4779</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RhsView::type RhsStlContainer;</div>
<div class="line"><a id="l04780" name="l04780"></a><span class="lineno"> 4780</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> RhsStlContainer::value_type Second;</div>
<div class="line"><a id="l04781" name="l04781"></a><span class="lineno"> 4781</span>  <span class="keyword">const</span> RhsStlContainer&amp; rhs_stl_container =</div>
<div class="line"><a id="l04782" name="l04782"></a><span class="lineno"> 4782</span>      RhsView::ConstReference(rhs_container);</div>
<div class="line"><a id="l04783" name="l04783"></a><span class="lineno"> 4783</span> </div>
<div class="line"><a id="l04784" name="l04784"></a><span class="lineno"> 4784</span>  <span class="comment">// Create a matcher for each element in rhs_container.</span></div>
<div class="line"><a id="l04785" name="l04785"></a><span class="lineno"> 4785</span>  ::std::vector&lt;internal::BoundSecondMatcher&lt;Tuple2Matcher, Second&gt;&gt; matchers;</div>
<div class="line"><a id="l04786" name="l04786"></a><span class="lineno"> 4786</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = rhs_stl_container.begin(); it != rhs_stl_container.end();</div>
<div class="line"><a id="l04787" name="l04787"></a><span class="lineno"> 4787</span>       ++it) {</div>
<div class="line"><a id="l04788" name="l04788"></a><span class="lineno"> 4788</span>    matchers.push_back(internal::MatcherBindSecond(tuple2_matcher, *it));</div>
<div class="line"><a id="l04789" name="l04789"></a><span class="lineno"> 4789</span>  }</div>
<div class="line"><a id="l04790" name="l04790"></a><span class="lineno"> 4790</span> </div>
<div class="line"><a id="l04791" name="l04791"></a><span class="lineno"> 4791</span>  <span class="comment">// Delegate the work to UnorderedElementsAreArray().</span></div>
<div class="line"><a id="l04792" name="l04792"></a><span class="lineno"> 4792</span>  <span class="keywordflow">return</span> UnorderedElementsAreArray(matchers);</div>
<div class="line"><a id="l04793" name="l04793"></a><span class="lineno"> 4793</span>}</div>
<div class="line"><a id="l04794" name="l04794"></a><span class="lineno"> 4794</span> </div>
<div class="line"><a id="l04795" name="l04795"></a><span class="lineno"> 4795</span><span class="comment">// Supports the UnorderedPointwise(m, {a, b, c}) syntax.</span></div>
<div class="line"><a id="l04796" name="l04796"></a><span class="lineno"> 4796</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Tuple2Matcher, <span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04797" name="l04797"></a><span class="lineno"> 4797</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04798" name="l04798"></a><span class="lineno"> 4798</span>    <span class="keyword">typename</span> internal::BoundSecondMatcher&lt;Tuple2Matcher, T&gt;&gt;</div>
<div class="line"><a id="l04799" name="l04799"></a><span class="lineno"> 4799</span>UnorderedPointwise(<span class="keyword">const</span> Tuple2Matcher&amp; tuple2_matcher,</div>
<div class="line"><a id="l04800" name="l04800"></a><span class="lineno"> 4800</span>                   std::initializer_list&lt;T&gt; rhs) {</div>
<div class="line"><a id="l04801" name="l04801"></a><span class="lineno"> 4801</span>  <span class="keywordflow">return</span> UnorderedPointwise(tuple2_matcher, std::vector&lt;T&gt;(rhs));</div>
<div class="line"><a id="l04802" name="l04802"></a><span class="lineno"> 4802</span>}</div>
<div class="line"><a id="l04803" name="l04803"></a><span class="lineno"> 4803</span> </div>
<div class="line"><a id="l04804" name="l04804"></a><span class="lineno"> 4804</span><span class="comment">// Matches an STL-style container or a native array that contains at</span></div>
<div class="line"><a id="l04805" name="l04805"></a><span class="lineno"> 4805</span><span class="comment">// least one element matching the given value or matcher.</span></div>
<div class="line"><a id="l04806" name="l04806"></a><span class="lineno"> 4806</span><span class="comment">//</span></div>
<div class="line"><a id="l04807" name="l04807"></a><span class="lineno"> 4807</span><span class="comment">// Examples:</span></div>
<div class="line"><a id="l04808" name="l04808"></a><span class="lineno"> 4808</span><span class="comment">//   ::std::set&lt;int&gt; page_ids;</span></div>
<div class="line"><a id="l04809" name="l04809"></a><span class="lineno"> 4809</span><span class="comment">//   page_ids.insert(3);</span></div>
<div class="line"><a id="l04810" name="l04810"></a><span class="lineno"> 4810</span><span class="comment">//   page_ids.insert(1);</span></div>
<div class="line"><a id="l04811" name="l04811"></a><span class="lineno"> 4811</span><span class="comment">//   EXPECT_THAT(page_ids, Contains(1));</span></div>
<div class="line"><a id="l04812" name="l04812"></a><span class="lineno"> 4812</span><span class="comment">//   EXPECT_THAT(page_ids, Contains(Gt(2)));</span></div>
<div class="line"><a id="l04813" name="l04813"></a><span class="lineno"> 4813</span><span class="comment">//   EXPECT_THAT(page_ids, Not(Contains(4)));  // See below for Times(0)</span></div>
<div class="line"><a id="l04814" name="l04814"></a><span class="lineno"> 4814</span><span class="comment">//</span></div>
<div class="line"><a id="l04815" name="l04815"></a><span class="lineno"> 4815</span><span class="comment">//   ::std::map&lt;int, size_t&gt; page_lengths;</span></div>
<div class="line"><a id="l04816" name="l04816"></a><span class="lineno"> 4816</span><span class="comment">//   page_lengths[1] = 100;</span></div>
<div class="line"><a id="l04817" name="l04817"></a><span class="lineno"> 4817</span><span class="comment">//   EXPECT_THAT(page_lengths,</span></div>
<div class="line"><a id="l04818" name="l04818"></a><span class="lineno"> 4818</span><span class="comment">//               Contains(::std::pair&lt;const int, size_t&gt;(1, 100)));</span></div>
<div class="line"><a id="l04819" name="l04819"></a><span class="lineno"> 4819</span><span class="comment">//</span></div>
<div class="line"><a id="l04820" name="l04820"></a><span class="lineno"> 4820</span><span class="comment">//   const char* user_ids[] = { &quot;joe&quot;, &quot;mike&quot;, &quot;tom&quot; };</span></div>
<div class="line"><a id="l04821" name="l04821"></a><span class="lineno"> 4821</span><span class="comment">//   EXPECT_THAT(user_ids, Contains(Eq(::std::string(&quot;tom&quot;))));</span></div>
<div class="line"><a id="l04822" name="l04822"></a><span class="lineno"> 4822</span><span class="comment">//</span></div>
<div class="line"><a id="l04823" name="l04823"></a><span class="lineno"> 4823</span><span class="comment">// The matcher supports a modifier `Times` that allows to check for arbitrary</span></div>
<div class="line"><a id="l04824" name="l04824"></a><span class="lineno"> 4824</span><span class="comment">// occurrences including testing for absence with Times(0).</span></div>
<div class="line"><a id="l04825" name="l04825"></a><span class="lineno"> 4825</span><span class="comment">//</span></div>
<div class="line"><a id="l04826" name="l04826"></a><span class="lineno"> 4826</span><span class="comment">// Examples:</span></div>
<div class="line"><a id="l04827" name="l04827"></a><span class="lineno"> 4827</span><span class="comment">//   ::std::vector&lt;int&gt; ids;</span></div>
<div class="line"><a id="l04828" name="l04828"></a><span class="lineno"> 4828</span><span class="comment">//   ids.insert(1);</span></div>
<div class="line"><a id="l04829" name="l04829"></a><span class="lineno"> 4829</span><span class="comment">//   ids.insert(1);</span></div>
<div class="line"><a id="l04830" name="l04830"></a><span class="lineno"> 4830</span><span class="comment">//   ids.insert(3);</span></div>
<div class="line"><a id="l04831" name="l04831"></a><span class="lineno"> 4831</span><span class="comment">//   EXPECT_THAT(ids, Contains(1).Times(2));      // 1 occurs 2 times</span></div>
<div class="line"><a id="l04832" name="l04832"></a><span class="lineno"> 4832</span><span class="comment">//   EXPECT_THAT(ids, Contains(2).Times(0));      // 2 is not present</span></div>
<div class="line"><a id="l04833" name="l04833"></a><span class="lineno"> 4833</span><span class="comment">//   EXPECT_THAT(ids, Contains(3).Times(Ge(1)));  // 3 occurs at least once</span></div>
<div class="line"><a id="l04834" name="l04834"></a><span class="lineno"> 4834</span> </div>
<div class="line"><a id="l04835" name="l04835"></a><span class="lineno"> 4835</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l04836" name="l04836"></a><span class="lineno"> 4836</span><span class="keyword">inline</span> internal::ContainsMatcher&lt;M&gt; Contains(M matcher) {</div>
<div class="line"><a id="l04837" name="l04837"></a><span class="lineno"> 4837</span>  <span class="keywordflow">return</span> internal::ContainsMatcher&lt;M&gt;(matcher);</div>
<div class="line"><a id="l04838" name="l04838"></a><span class="lineno"> 4838</span>}</div>
<div class="line"><a id="l04839" name="l04839"></a><span class="lineno"> 4839</span> </div>
<div class="line"><a id="l04840" name="l04840"></a><span class="lineno"> 4840</span><span class="comment">// IsSupersetOf(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l04841" name="l04841"></a><span class="lineno"> 4841</span><span class="comment">// IsSupersetOf(pointer, count)</span></div>
<div class="line"><a id="l04842" name="l04842"></a><span class="lineno"> 4842</span><span class="comment">// IsSupersetOf(array)</span></div>
<div class="line"><a id="l04843" name="l04843"></a><span class="lineno"> 4843</span><span class="comment">// IsSupersetOf(container)</span></div>
<div class="line"><a id="l04844" name="l04844"></a><span class="lineno"> 4844</span><span class="comment">// IsSupersetOf({e1, e2, ..., en})</span></div>
<div class="line"><a id="l04845" name="l04845"></a><span class="lineno"> 4845</span><span class="comment">//</span></div>
<div class="line"><a id="l04846" name="l04846"></a><span class="lineno"> 4846</span><span class="comment">// IsSupersetOf() verifies that a surjective partial mapping onto a collection</span></div>
<div class="line"><a id="l04847" name="l04847"></a><span class="lineno"> 4847</span><span class="comment">// of matchers exists. In other words, a container matches</span></div>
<div class="line"><a id="l04848" name="l04848"></a><span class="lineno"> 4848</span><span class="comment">// IsSupersetOf({e1, ..., en}) if and only if there is a permutation</span></div>
<div class="line"><a id="l04849" name="l04849"></a><span class="lineno"> 4849</span><span class="comment">// {y1, ..., yn} of some of the container&#39;s elements where y1 matches e1,</span></div>
<div class="line"><a id="l04850" name="l04850"></a><span class="lineno"> 4850</span><span class="comment">// ..., and yn matches en. Obviously, the size of the container must be &gt;= n</span></div>
<div class="line"><a id="l04851" name="l04851"></a><span class="lineno"> 4851</span><span class="comment">// in order to have a match. Examples:</span></div>
<div class="line"><a id="l04852" name="l04852"></a><span class="lineno"> 4852</span><span class="comment">//</span></div>
<div class="line"><a id="l04853" name="l04853"></a><span class="lineno"> 4853</span><span class="comment">// - {1, 2, 3} matches IsSupersetOf({Ge(3), Ne(0)}), as 3 matches Ge(3) and</span></div>
<div class="line"><a id="l04854" name="l04854"></a><span class="lineno"> 4854</span><span class="comment">//   1 matches Ne(0).</span></div>
<div class="line"><a id="l04855" name="l04855"></a><span class="lineno"> 4855</span><span class="comment">// - {1, 2} doesn&#39;t match IsSupersetOf({Eq(1), Lt(2)}), even though 1 matches</span></div>
<div class="line"><a id="l04856" name="l04856"></a><span class="lineno"> 4856</span><span class="comment">//   both Eq(1) and Lt(2). The reason is that different matchers must be used</span></div>
<div class="line"><a id="l04857" name="l04857"></a><span class="lineno"> 4857</span><span class="comment">//   for elements in different slots of the container.</span></div>
<div class="line"><a id="l04858" name="l04858"></a><span class="lineno"> 4858</span><span class="comment">// - {1, 1, 2} matches IsSupersetOf({Eq(1), Lt(2)}), as (the first) 1 matches</span></div>
<div class="line"><a id="l04859" name="l04859"></a><span class="lineno"> 4859</span><span class="comment">//   Eq(1) and (the second) 1 matches Lt(2).</span></div>
<div class="line"><a id="l04860" name="l04860"></a><span class="lineno"> 4860</span><span class="comment">// - {1, 2, 3} matches IsSupersetOf(Gt(1), Gt(1)), as 2 matches (the first)</span></div>
<div class="line"><a id="l04861" name="l04861"></a><span class="lineno"> 4861</span><span class="comment">//   Gt(1) and 3 matches (the second) Gt(1).</span></div>
<div class="line"><a id="l04862" name="l04862"></a><span class="lineno"> 4862</span><span class="comment">//</span></div>
<div class="line"><a id="l04863" name="l04863"></a><span class="lineno"> 4863</span><span class="comment">// The matchers can be specified as an array, a pointer and count, a container,</span></div>
<div class="line"><a id="l04864" name="l04864"></a><span class="lineno"> 4864</span><span class="comment">// an initializer list, or an STL iterator range. In each of these cases, the</span></div>
<div class="line"><a id="l04865" name="l04865"></a><span class="lineno"> 4865</span><span class="comment">// underlying matchers can be either values or matchers.</span></div>
<div class="line"><a id="l04866" name="l04866"></a><span class="lineno"> 4866</span> </div>
<div class="line"><a id="l04867" name="l04867"></a><span class="lineno"> 4867</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l04868" name="l04868"></a><span class="lineno"> 4868</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04869" name="l04869"></a><span class="lineno"> 4869</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l04870" name="l04870"></a><span class="lineno"> 4870</span>IsSupersetOf(Iter first, Iter last) {</div>
<div class="line"><a id="l04871" name="l04871"></a><span class="lineno"> 4871</span>  <span class="keyword">typedef</span> typename ::std::iterator_traits&lt;Iter&gt;::value_type T;</div>
<div class="line"><a id="l04872" name="l04872"></a><span class="lineno"> 4872</span>  <span class="keywordflow">return</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt;(</div>
<div class="line"><a id="l04873" name="l04873"></a><span class="lineno"> 4873</span>      internal::UnorderedMatcherRequire::Superset, first, last);</div>
<div class="line"><a id="l04874" name="l04874"></a><span class="lineno"> 4874</span>}</div>
<div class="line"><a id="l04875" name="l04875"></a><span class="lineno"> 4875</span> </div>
<div class="line"><a id="l04876" name="l04876"></a><span class="lineno"> 4876</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04877" name="l04877"></a><span class="lineno"> 4877</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSupersetOf(</div>
<div class="line"><a id="l04878" name="l04878"></a><span class="lineno"> 4878</span>    <span class="keyword">const</span> T* pointer, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l04879" name="l04879"></a><span class="lineno"> 4879</span>  <span class="keywordflow">return</span> IsSupersetOf(pointer, pointer + count);</div>
<div class="line"><a id="l04880" name="l04880"></a><span class="lineno"> 4880</span>}</div>
<div class="line"><a id="l04881" name="l04881"></a><span class="lineno"> 4881</span> </div>
<div class="line"><a id="l04882" name="l04882"></a><span class="lineno"> 4882</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l04883" name="l04883"></a><span class="lineno"> 4883</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSupersetOf(</div>
<div class="line"><a id="l04884" name="l04884"></a><span class="lineno"> 4884</span>    <span class="keyword">const</span> T (&amp;array)[N]) {</div>
<div class="line"><a id="l04885" name="l04885"></a><span class="lineno"> 4885</span>  <span class="keywordflow">return</span> IsSupersetOf(array, N);</div>
<div class="line"><a id="l04886" name="l04886"></a><span class="lineno"> 4886</span>}</div>
<div class="line"><a id="l04887" name="l04887"></a><span class="lineno"> 4887</span> </div>
<div class="line"><a id="l04888" name="l04888"></a><span class="lineno"> 4888</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04889" name="l04889"></a><span class="lineno"> 4889</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04890" name="l04890"></a><span class="lineno"> 4890</span>    <span class="keyword">typename</span> Container::value_type&gt;</div>
<div class="line"><a id="l04891" name="l04891"></a><span class="lineno"> 4891</span>IsSupersetOf(<span class="keyword">const</span> Container&amp; container) {</div>
<div class="line"><a id="l04892" name="l04892"></a><span class="lineno"> 4892</span>  <span class="keywordflow">return</span> IsSupersetOf(container.begin(), container.end());</div>
<div class="line"><a id="l04893" name="l04893"></a><span class="lineno"> 4893</span>}</div>
<div class="line"><a id="l04894" name="l04894"></a><span class="lineno"> 4894</span> </div>
<div class="line"><a id="l04895" name="l04895"></a><span class="lineno"> 4895</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04896" name="l04896"></a><span class="lineno"> 4896</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSupersetOf(</div>
<div class="line"><a id="l04897" name="l04897"></a><span class="lineno"> 4897</span>    ::std::initializer_list&lt;T&gt; xs) {</div>
<div class="line"><a id="l04898" name="l04898"></a><span class="lineno"> 4898</span>  <span class="keywordflow">return</span> IsSupersetOf(xs.begin(), xs.end());</div>
<div class="line"><a id="l04899" name="l04899"></a><span class="lineno"> 4899</span>}</div>
<div class="line"><a id="l04900" name="l04900"></a><span class="lineno"> 4900</span> </div>
<div class="line"><a id="l04901" name="l04901"></a><span class="lineno"> 4901</span><span class="comment">// IsSubsetOf(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l04902" name="l04902"></a><span class="lineno"> 4902</span><span class="comment">// IsSubsetOf(pointer, count)</span></div>
<div class="line"><a id="l04903" name="l04903"></a><span class="lineno"> 4903</span><span class="comment">// IsSubsetOf(array)</span></div>
<div class="line"><a id="l04904" name="l04904"></a><span class="lineno"> 4904</span><span class="comment">// IsSubsetOf(container)</span></div>
<div class="line"><a id="l04905" name="l04905"></a><span class="lineno"> 4905</span><span class="comment">// IsSubsetOf({e1, e2, ..., en})</span></div>
<div class="line"><a id="l04906" name="l04906"></a><span class="lineno"> 4906</span><span class="comment">//</span></div>
<div class="line"><a id="l04907" name="l04907"></a><span class="lineno"> 4907</span><span class="comment">// IsSubsetOf() verifies that an injective mapping onto a collection of matchers</span></div>
<div class="line"><a id="l04908" name="l04908"></a><span class="lineno"> 4908</span><span class="comment">// exists.  In other words, a container matches IsSubsetOf({e1, ..., en}) if and</span></div>
<div class="line"><a id="l04909" name="l04909"></a><span class="lineno"> 4909</span><span class="comment">// only if there is a subset of matchers {m1, ..., mk} which would match the</span></div>
<div class="line"><a id="l04910" name="l04910"></a><span class="lineno"> 4910</span><span class="comment">// container using UnorderedElementsAre.  Obviously, the size of the container</span></div>
<div class="line"><a id="l04911" name="l04911"></a><span class="lineno"> 4911</span><span class="comment">// must be &lt;= n in order to have a match. Examples:</span></div>
<div class="line"><a id="l04912" name="l04912"></a><span class="lineno"> 4912</span><span class="comment">//</span></div>
<div class="line"><a id="l04913" name="l04913"></a><span class="lineno"> 4913</span><span class="comment">// - {1} matches IsSubsetOf({Gt(0), Lt(0)}), as 1 matches Gt(0).</span></div>
<div class="line"><a id="l04914" name="l04914"></a><span class="lineno"> 4914</span><span class="comment">// - {1, -1} matches IsSubsetOf({Lt(0), Gt(0)}), as 1 matches Gt(0) and -1</span></div>
<div class="line"><a id="l04915" name="l04915"></a><span class="lineno"> 4915</span><span class="comment">//   matches Lt(0).</span></div>
<div class="line"><a id="l04916" name="l04916"></a><span class="lineno"> 4916</span><span class="comment">// - {1, 2} doesn&#39;t matches IsSubsetOf({Gt(0), Lt(0)}), even though 1 and 2 both</span></div>
<div class="line"><a id="l04917" name="l04917"></a><span class="lineno"> 4917</span><span class="comment">//   match Gt(0). The reason is that different matchers must be used for</span></div>
<div class="line"><a id="l04918" name="l04918"></a><span class="lineno"> 4918</span><span class="comment">//   elements in different slots of the container.</span></div>
<div class="line"><a id="l04919" name="l04919"></a><span class="lineno"> 4919</span><span class="comment">//</span></div>
<div class="line"><a id="l04920" name="l04920"></a><span class="lineno"> 4920</span><span class="comment">// The matchers can be specified as an array, a pointer and count, a container,</span></div>
<div class="line"><a id="l04921" name="l04921"></a><span class="lineno"> 4921</span><span class="comment">// an initializer list, or an STL iterator range. In each of these cases, the</span></div>
<div class="line"><a id="l04922" name="l04922"></a><span class="lineno"> 4922</span><span class="comment">// underlying matchers can be either values or matchers.</span></div>
<div class="line"><a id="l04923" name="l04923"></a><span class="lineno"> 4923</span> </div>
<div class="line"><a id="l04924" name="l04924"></a><span class="lineno"> 4924</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l04925" name="l04925"></a><span class="lineno"> 4925</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04926" name="l04926"></a><span class="lineno"> 4926</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l04927" name="l04927"></a><span class="lineno"> 4927</span>IsSubsetOf(Iter first, Iter last) {</div>
<div class="line"><a id="l04928" name="l04928"></a><span class="lineno"> 4928</span>  <span class="keyword">typedef</span> typename ::std::iterator_traits&lt;Iter&gt;::value_type T;</div>
<div class="line"><a id="l04929" name="l04929"></a><span class="lineno"> 4929</span>  <span class="keywordflow">return</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt;(</div>
<div class="line"><a id="l04930" name="l04930"></a><span class="lineno"> 4930</span>      internal::UnorderedMatcherRequire::Subset, first, last);</div>
<div class="line"><a id="l04931" name="l04931"></a><span class="lineno"> 4931</span>}</div>
<div class="line"><a id="l04932" name="l04932"></a><span class="lineno"> 4932</span> </div>
<div class="line"><a id="l04933" name="l04933"></a><span class="lineno"> 4933</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04934" name="l04934"></a><span class="lineno"> 4934</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSubsetOf(</div>
<div class="line"><a id="l04935" name="l04935"></a><span class="lineno"> 4935</span>    <span class="keyword">const</span> T* pointer, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l04936" name="l04936"></a><span class="lineno"> 4936</span>  <span class="keywordflow">return</span> IsSubsetOf(pointer, pointer + count);</div>
<div class="line"><a id="l04937" name="l04937"></a><span class="lineno"> 4937</span>}</div>
<div class="line"><a id="l04938" name="l04938"></a><span class="lineno"> 4938</span> </div>
<div class="line"><a id="l04939" name="l04939"></a><span class="lineno"> 4939</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l04940" name="l04940"></a><span class="lineno"> 4940</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSubsetOf(</div>
<div class="line"><a id="l04941" name="l04941"></a><span class="lineno"> 4941</span>    <span class="keyword">const</span> T (&amp;array)[N]) {</div>
<div class="line"><a id="l04942" name="l04942"></a><span class="lineno"> 4942</span>  <span class="keywordflow">return</span> IsSubsetOf(array, N);</div>
<div class="line"><a id="l04943" name="l04943"></a><span class="lineno"> 4943</span>}</div>
<div class="line"><a id="l04944" name="l04944"></a><span class="lineno"> 4944</span> </div>
<div class="line"><a id="l04945" name="l04945"></a><span class="lineno"> 4945</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l04946" name="l04946"></a><span class="lineno"> 4946</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;</div>
<div class="line"><a id="l04947" name="l04947"></a><span class="lineno"> 4947</span>    <span class="keyword">typename</span> Container::value_type&gt;</div>
<div class="line"><a id="l04948" name="l04948"></a><span class="lineno"> 4948</span>IsSubsetOf(<span class="keyword">const</span> Container&amp; container) {</div>
<div class="line"><a id="l04949" name="l04949"></a><span class="lineno"> 4949</span>  <span class="keywordflow">return</span> IsSubsetOf(container.begin(), container.end());</div>
<div class="line"><a id="l04950" name="l04950"></a><span class="lineno"> 4950</span>}</div>
<div class="line"><a id="l04951" name="l04951"></a><span class="lineno"> 4951</span> </div>
<div class="line"><a id="l04952" name="l04952"></a><span class="lineno"> 4952</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l04953" name="l04953"></a><span class="lineno"> 4953</span><span class="keyword">inline</span> internal::UnorderedElementsAreArrayMatcher&lt;T&gt; IsSubsetOf(</div>
<div class="line"><a id="l04954" name="l04954"></a><span class="lineno"> 4954</span>    ::std::initializer_list&lt;T&gt; xs) {</div>
<div class="line"><a id="l04955" name="l04955"></a><span class="lineno"> 4955</span>  <span class="keywordflow">return</span> IsSubsetOf(xs.begin(), xs.end());</div>
<div class="line"><a id="l04956" name="l04956"></a><span class="lineno"> 4956</span>}</div>
<div class="line"><a id="l04957" name="l04957"></a><span class="lineno"> 4957</span> </div>
<div class="line"><a id="l04958" name="l04958"></a><span class="lineno"> 4958</span><span class="comment">// Matches an STL-style container or a native array that contains only</span></div>
<div class="line"><a id="l04959" name="l04959"></a><span class="lineno"> 4959</span><span class="comment">// elements matching the given value or matcher.</span></div>
<div class="line"><a id="l04960" name="l04960"></a><span class="lineno"> 4960</span><span class="comment">//</span></div>
<div class="line"><a id="l04961" name="l04961"></a><span class="lineno"> 4961</span><span class="comment">// Each(m) is semantically equivalent to `Not(Contains(Not(m)))`. Only</span></div>
<div class="line"><a id="l04962" name="l04962"></a><span class="lineno"> 4962</span><span class="comment">// the messages are different.</span></div>
<div class="line"><a id="l04963" name="l04963"></a><span class="lineno"> 4963</span><span class="comment">//</span></div>
<div class="line"><a id="l04964" name="l04964"></a><span class="lineno"> 4964</span><span class="comment">// Examples:</span></div>
<div class="line"><a id="l04965" name="l04965"></a><span class="lineno"> 4965</span><span class="comment">//   ::std::set&lt;int&gt; page_ids;</span></div>
<div class="line"><a id="l04966" name="l04966"></a><span class="lineno"> 4966</span><span class="comment">//   // Each(m) matches an empty container, regardless of what m is.</span></div>
<div class="line"><a id="l04967" name="l04967"></a><span class="lineno"> 4967</span><span class="comment">//   EXPECT_THAT(page_ids, Each(Eq(1)));</span></div>
<div class="line"><a id="l04968" name="l04968"></a><span class="lineno"> 4968</span><span class="comment">//   EXPECT_THAT(page_ids, Each(Eq(77)));</span></div>
<div class="line"><a id="l04969" name="l04969"></a><span class="lineno"> 4969</span><span class="comment">//</span></div>
<div class="line"><a id="l04970" name="l04970"></a><span class="lineno"> 4970</span><span class="comment">//   page_ids.insert(3);</span></div>
<div class="line"><a id="l04971" name="l04971"></a><span class="lineno"> 4971</span><span class="comment">//   EXPECT_THAT(page_ids, Each(Gt(0)));</span></div>
<div class="line"><a id="l04972" name="l04972"></a><span class="lineno"> 4972</span><span class="comment">//   EXPECT_THAT(page_ids, Not(Each(Gt(4))));</span></div>
<div class="line"><a id="l04973" name="l04973"></a><span class="lineno"> 4973</span><span class="comment">//   page_ids.insert(1);</span></div>
<div class="line"><a id="l04974" name="l04974"></a><span class="lineno"> 4974</span><span class="comment">//   EXPECT_THAT(page_ids, Not(Each(Lt(2))));</span></div>
<div class="line"><a id="l04975" name="l04975"></a><span class="lineno"> 4975</span><span class="comment">//</span></div>
<div class="line"><a id="l04976" name="l04976"></a><span class="lineno"> 4976</span><span class="comment">//   ::std::map&lt;int, size_t&gt; page_lengths;</span></div>
<div class="line"><a id="l04977" name="l04977"></a><span class="lineno"> 4977</span><span class="comment">//   page_lengths[1] = 100;</span></div>
<div class="line"><a id="l04978" name="l04978"></a><span class="lineno"> 4978</span><span class="comment">//   page_lengths[2] = 200;</span></div>
<div class="line"><a id="l04979" name="l04979"></a><span class="lineno"> 4979</span><span class="comment">//   page_lengths[3] = 300;</span></div>
<div class="line"><a id="l04980" name="l04980"></a><span class="lineno"> 4980</span><span class="comment">//   EXPECT_THAT(page_lengths, Not(Each(Pair(1, 100))));</span></div>
<div class="line"><a id="l04981" name="l04981"></a><span class="lineno"> 4981</span><span class="comment">//   EXPECT_THAT(page_lengths, Each(Key(Le(3))));</span></div>
<div class="line"><a id="l04982" name="l04982"></a><span class="lineno"> 4982</span><span class="comment">//</span></div>
<div class="line"><a id="l04983" name="l04983"></a><span class="lineno"> 4983</span><span class="comment">//   const char* user_ids[] = { &quot;joe&quot;, &quot;mike&quot;, &quot;tom&quot; };</span></div>
<div class="line"><a id="l04984" name="l04984"></a><span class="lineno"> 4984</span><span class="comment">//   EXPECT_THAT(user_ids, Not(Each(Eq(::std::string(&quot;tom&quot;)))));</span></div>
<div class="line"><a id="l04985" name="l04985"></a><span class="lineno"> 4985</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l04986" name="l04986"></a><span class="lineno"> 4986</span><span class="keyword">inline</span> internal::EachMatcher&lt;M&gt; Each(M matcher) {</div>
<div class="line"><a id="l04987" name="l04987"></a><span class="lineno"> 4987</span>  <span class="keywordflow">return</span> internal::EachMatcher&lt;M&gt;(matcher);</div>
<div class="line"><a id="l04988" name="l04988"></a><span class="lineno"> 4988</span>}</div>
<div class="line"><a id="l04989" name="l04989"></a><span class="lineno"> 4989</span> </div>
<div class="line"><a id="l04990" name="l04990"></a><span class="lineno"> 4990</span><span class="comment">// Key(inner_matcher) matches an std::pair whose &#39;first&#39; field matches</span></div>
<div class="line"><a id="l04991" name="l04991"></a><span class="lineno"> 4991</span><span class="comment">// inner_matcher.  For example, Contains(Key(Ge(5))) can be used to match an</span></div>
<div class="line"><a id="l04992" name="l04992"></a><span class="lineno"> 4992</span><span class="comment">// std::map that contains at least one element whose key is &gt;= 5.</span></div>
<div class="line"><a id="l04993" name="l04993"></a><span class="lineno"> 4993</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l04994" name="l04994"></a><span class="lineno"> 4994</span><span class="keyword">inline</span> internal::KeyMatcher&lt;M&gt; Key(M inner_matcher) {</div>
<div class="line"><a id="l04995" name="l04995"></a><span class="lineno"> 4995</span>  <span class="keywordflow">return</span> internal::KeyMatcher&lt;M&gt;(inner_matcher);</div>
<div class="line"><a id="l04996" name="l04996"></a><span class="lineno"> 4996</span>}</div>
<div class="line"><a id="l04997" name="l04997"></a><span class="lineno"> 4997</span> </div>
<div class="line"><a id="l04998" name="l04998"></a><span class="lineno"> 4998</span><span class="comment">// Pair(first_matcher, second_matcher) matches a std::pair whose &#39;first&#39; field</span></div>
<div class="line"><a id="l04999" name="l04999"></a><span class="lineno"> 4999</span><span class="comment">// matches first_matcher and whose &#39;second&#39; field matches second_matcher.  For</span></div>
<div class="line"><a id="l05000" name="l05000"></a><span class="lineno"> 5000</span><span class="comment">// example, EXPECT_THAT(map_type, ElementsAre(Pair(Ge(5), &quot;foo&quot;))) can be used</span></div>
<div class="line"><a id="l05001" name="l05001"></a><span class="lineno"> 5001</span><span class="comment">// to match a std::map&lt;int, string&gt; that contains exactly one element whose key</span></div>
<div class="line"><a id="l05002" name="l05002"></a><span class="lineno"> 5002</span><span class="comment">// is &gt;= 5 and whose value equals &quot;foo&quot;.</span></div>
<div class="line"><a id="l05003" name="l05003"></a><span class="lineno"> 5003</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> FirstMatcher, <span class="keyword">typename</span> SecondMatcher&gt;</div>
<div class="line"><a id="l05004" name="l05004"></a><span class="lineno"> 5004</span><span class="keyword">inline</span> internal::PairMatcher&lt;FirstMatcher, SecondMatcher&gt; Pair(</div>
<div class="line"><a id="l05005" name="l05005"></a><span class="lineno"> 5005</span>    FirstMatcher first_matcher, SecondMatcher second_matcher) {</div>
<div class="line"><a id="l05006" name="l05006"></a><span class="lineno"> 5006</span>  <span class="keywordflow">return</span> internal::PairMatcher&lt;FirstMatcher, SecondMatcher&gt;(first_matcher,</div>
<div class="line"><a id="l05007" name="l05007"></a><span class="lineno"> 5007</span>                                                            second_matcher);</div>
<div class="line"><a id="l05008" name="l05008"></a><span class="lineno"> 5008</span>}</div>
<div class="line"><a id="l05009" name="l05009"></a><span class="lineno"> 5009</span> </div>
<div class="line"><a id="l05010" name="l05010"></a><span class="lineno"> 5010</span><span class="keyword">namespace </span>no_adl {</div>
<div class="line"><a id="l05011" name="l05011"></a><span class="lineno"> 5011</span><span class="comment">// Conditional() creates a matcher that conditionally uses either the first or</span></div>
<div class="line"><a id="l05012" name="l05012"></a><span class="lineno"> 5012</span><span class="comment">// second matcher provided. For example, we could create an `equal if, and only</span></div>
<div class="line"><a id="l05013" name="l05013"></a><span class="lineno"> 5013</span><span class="comment">// if&#39; matcher using the Conditional wrapper as follows:</span></div>
<div class="line"><a id="l05014" name="l05014"></a><span class="lineno"> 5014</span><span class="comment">//</span></div>
<div class="line"><a id="l05015" name="l05015"></a><span class="lineno"> 5015</span><span class="comment">//   EXPECT_THAT(result, Conditional(condition, Eq(expected), Ne(expected)));</span></div>
<div class="line"><a id="l05016" name="l05016"></a><span class="lineno"> 5016</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherTrue, <span class="keyword">typename</span> MatcherFalse&gt;</div>
<div class="line"><a id="l05017" name="l05017"></a><span class="lineno"> 5017</span>internal::ConditionalMatcher&lt;MatcherTrue, MatcherFalse&gt; Conditional(</div>
<div class="line"><a id="l05018" name="l05018"></a><span class="lineno"> 5018</span>    <span class="keywordtype">bool</span> condition, MatcherTrue matcher_true, MatcherFalse matcher_false) {</div>
<div class="line"><a id="l05019" name="l05019"></a><span class="lineno"> 5019</span>  <span class="keywordflow">return</span> internal::ConditionalMatcher&lt;MatcherTrue, MatcherFalse&gt;(</div>
<div class="line"><a id="l05020" name="l05020"></a><span class="lineno"> 5020</span>      condition, std::move(matcher_true), std::move(matcher_false));</div>
<div class="line"><a id="l05021" name="l05021"></a><span class="lineno"> 5021</span>}</div>
<div class="line"><a id="l05022" name="l05022"></a><span class="lineno"> 5022</span> </div>
<div class="line"><a id="l05023" name="l05023"></a><span class="lineno"> 5023</span><span class="comment">// FieldsAre(matchers...) matches piecewise the fields of compatible structs.</span></div>
<div class="line"><a id="l05024" name="l05024"></a><span class="lineno"> 5024</span><span class="comment">// These include those that support `get&lt;I&gt;(obj)`, and when structured bindings</span></div>
<div class="line"><a id="l05025" name="l05025"></a><span class="lineno"> 5025</span><span class="comment">// are enabled any class that supports them.</span></div>
<div class="line"><a id="l05026" name="l05026"></a><span class="lineno"> 5026</span><span class="comment">// In particular, `std::tuple`, `std::pair`, `std::array` and aggregate types.</span></div>
<div class="line"><a id="l05027" name="l05027"></a><span class="lineno"> 5027</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... M&gt;</div>
<div class="line"><a id="l05028" name="l05028"></a><span class="lineno"> 5028</span>internal::FieldsAreMatcher&lt;typename std::decay&lt;M&gt;::type...&gt; FieldsAre(</div>
<div class="line"><a id="l05029" name="l05029"></a><span class="lineno"> 5029</span>    M&amp;&amp;... matchers) {</div>
<div class="line"><a id="l05030" name="l05030"></a><span class="lineno"> 5030</span>  <span class="keywordflow">return</span> internal::FieldsAreMatcher&lt;typename std::decay&lt;M&gt;::type...&gt;(</div>
<div class="line"><a id="l05031" name="l05031"></a><span class="lineno"> 5031</span>      std::forward&lt;M&gt;(matchers)...);</div>
<div class="line"><a id="l05032" name="l05032"></a><span class="lineno"> 5032</span>}</div>
<div class="line"><a id="l05033" name="l05033"></a><span class="lineno"> 5033</span> </div>
<div class="line"><a id="l05034" name="l05034"></a><span class="lineno"> 5034</span><span class="comment">// Creates a matcher that matches a pointer (raw or smart) that matches</span></div>
<div class="line"><a id="l05035" name="l05035"></a><span class="lineno"> 5035</span><span class="comment">// inner_matcher.</span></div>
<div class="line"><a id="l05036" name="l05036"></a><span class="lineno"> 5036</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l05037" name="l05037"></a><span class="lineno"> 5037</span><span class="keyword">inline</span> internal::PointerMatcher&lt;InnerMatcher&gt; Pointer(</div>
<div class="line"><a id="l05038" name="l05038"></a><span class="lineno"> 5038</span>    <span class="keyword">const</span> InnerMatcher&amp; inner_matcher) {</div>
<div class="line"><a id="l05039" name="l05039"></a><span class="lineno"> 5039</span>  <span class="keywordflow">return</span> internal::PointerMatcher&lt;InnerMatcher&gt;(inner_matcher);</div>
<div class="line"><a id="l05040" name="l05040"></a><span class="lineno"> 5040</span>}</div>
<div class="line"><a id="l05041" name="l05041"></a><span class="lineno"> 5041</span> </div>
<div class="line"><a id="l05042" name="l05042"></a><span class="lineno"> 5042</span><span class="comment">// Creates a matcher that matches an object that has an address that matches</span></div>
<div class="line"><a id="l05043" name="l05043"></a><span class="lineno"> 5043</span><span class="comment">// inner_matcher.</span></div>
<div class="line"><a id="l05044" name="l05044"></a><span class="lineno"> 5044</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l05045" name="l05045"></a><span class="lineno"> 5045</span><span class="keyword">inline</span> internal::AddressMatcher&lt;InnerMatcher&gt; Address(</div>
<div class="line"><a id="l05046" name="l05046"></a><span class="lineno"> 5046</span>    <span class="keyword">const</span> InnerMatcher&amp; inner_matcher) {</div>
<div class="line"><a id="l05047" name="l05047"></a><span class="lineno"> 5047</span>  <span class="keywordflow">return</span> internal::AddressMatcher&lt;InnerMatcher&gt;(inner_matcher);</div>
<div class="line"><a id="l05048" name="l05048"></a><span class="lineno"> 5048</span>}</div>
<div class="line"><a id="l05049" name="l05049"></a><span class="lineno"> 5049</span> </div>
<div class="line"><a id="l05050" name="l05050"></a><span class="lineno"> 5050</span><span class="comment">// Matches a base64 escaped string, when the unescaped string matches the</span></div>
<div class="line"><a id="l05051" name="l05051"></a><span class="lineno"> 5051</span><span class="comment">// internal matcher.</span></div>
<div class="line"><a id="l05052" name="l05052"></a><span class="lineno"> 5052</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> MatcherType&gt;</div>
<div class="line"><a id="l05053" name="l05053"></a><span class="lineno"> 5053</span>internal::WhenBase64UnescapedMatcher WhenBase64Unescaped(</div>
<div class="line"><a id="l05054" name="l05054"></a><span class="lineno"> 5054</span>    <span class="keyword">const</span> MatcherType&amp; internal_matcher) {</div>
<div class="line"><a id="l05055" name="l05055"></a><span class="lineno"> 5055</span>  <span class="keywordflow">return</span> internal::WhenBase64UnescapedMatcher(internal_matcher);</div>
<div class="line"><a id="l05056" name="l05056"></a><span class="lineno"> 5056</span>}</div>
<div class="line"><a id="l05057" name="l05057"></a><span class="lineno"> 5057</span>}  <span class="comment">// namespace no_adl</span></div>
<div class="line"><a id="l05058" name="l05058"></a><span class="lineno"> 5058</span> </div>
<div class="line"><a id="l05059" name="l05059"></a><span class="lineno"> 5059</span><span class="comment">// Returns a predicate that is satisfied by anything that matches the</span></div>
<div class="line"><a id="l05060" name="l05060"></a><span class="lineno"> 5060</span><span class="comment">// given matcher.</span></div>
<div class="line"><a id="l05061" name="l05061"></a><span class="lineno"> 5061</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l05062" name="l05062"></a><span class="lineno"> 5062</span><span class="keyword">inline</span> internal::MatcherAsPredicate&lt;M&gt; Matches(M matcher) {</div>
<div class="line"><a id="l05063" name="l05063"></a><span class="lineno"> 5063</span>  <span class="keywordflow">return</span> internal::MatcherAsPredicate&lt;M&gt;(matcher);</div>
<div class="line"><a id="l05064" name="l05064"></a><span class="lineno"> 5064</span>}</div>
<div class="line"><a id="l05065" name="l05065"></a><span class="lineno"> 5065</span> </div>
<div class="line"><a id="l05066" name="l05066"></a><span class="lineno"> 5066</span><span class="comment">// Returns true if and only if the value matches the matcher.</span></div>
<div class="line"><a id="l05067" name="l05067"></a><span class="lineno"> 5067</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l05068" name="l05068"></a><span class="lineno"> 5068</span><span class="keyword">inline</span> <span class="keywordtype">bool</span> Value(<span class="keyword">const</span> T&amp; value, M matcher) {</div>
<div class="line"><a id="l05069" name="l05069"></a><span class="lineno"> 5069</span>  <span class="keywordflow">return</span> testing::Matches(matcher)(value);</div>
<div class="line"><a id="l05070" name="l05070"></a><span class="lineno"> 5070</span>}</div>
<div class="line"><a id="l05071" name="l05071"></a><span class="lineno"> 5071</span> </div>
<div class="line"><a id="l05072" name="l05072"></a><span class="lineno"> 5072</span><span class="comment">// Matches the value against the given matcher and explains the match</span></div>
<div class="line"><a id="l05073" name="l05073"></a><span class="lineno"> 5073</span><span class="comment">// result to listener.</span></div>
<div class="line"><a id="l05074" name="l05074"></a><span class="lineno"> 5074</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l05075" name="l05075"></a><span class="lineno"> 5075</span><span class="keyword">inline</span> <span class="keywordtype">bool</span> ExplainMatchResult(M matcher, <span class="keyword">const</span> T&amp; value,</div>
<div class="line"><a id="l05076" name="l05076"></a><span class="lineno"> 5076</span>                               MatchResultListener* listener) {</div>
<div class="line"><a id="l05077" name="l05077"></a><span class="lineno"> 5077</span>  <span class="keywordflow">return</span> SafeMatcherCast&lt;const T&amp;&gt;(matcher).MatchAndExplain(value, listener);</div>
<div class="line"><a id="l05078" name="l05078"></a><span class="lineno"> 5078</span>}</div>
<div class="line"><a id="l05079" name="l05079"></a><span class="lineno"> 5079</span> </div>
<div class="line"><a id="l05080" name="l05080"></a><span class="lineno"> 5080</span><span class="comment">// Returns a string representation of the given matcher.  Useful for description</span></div>
<div class="line"><a id="l05081" name="l05081"></a><span class="lineno"> 5081</span><span class="comment">// strings of matchers defined using MATCHER_P* macros that accept matchers as</span></div>
<div class="line"><a id="l05082" name="l05082"></a><span class="lineno"> 5082</span><span class="comment">// their arguments.  For example:</span></div>
<div class="line"><a id="l05083" name="l05083"></a><span class="lineno"> 5083</span><span class="comment">//</span></div>
<div class="line"><a id="l05084" name="l05084"></a><span class="lineno"> 5084</span><span class="comment">// MATCHER_P(XAndYThat, matcher,</span></div>
<div class="line"><a id="l05085" name="l05085"></a><span class="lineno"> 5085</span><span class="comment">//           &quot;X that &quot; + DescribeMatcher&lt;int&gt;(matcher, negation) +</span></div>
<div class="line"><a id="l05086" name="l05086"></a><span class="lineno"> 5086</span><span class="comment">//               (negation ? &quot; or&quot; : &quot; and&quot;) + &quot; Y that &quot; +</span></div>
<div class="line"><a id="l05087" name="l05087"></a><span class="lineno"> 5087</span><span class="comment">//               DescribeMatcher&lt;double&gt;(matcher, negation)) {</span></div>
<div class="line"><a id="l05088" name="l05088"></a><span class="lineno"> 5088</span><span class="comment">//   return ExplainMatchResult(matcher, arg.x(), result_listener) &amp;&amp;</span></div>
<div class="line"><a id="l05089" name="l05089"></a><span class="lineno"> 5089</span><span class="comment">//          ExplainMatchResult(matcher, arg.y(), result_listener);</span></div>
<div class="line"><a id="l05090" name="l05090"></a><span class="lineno"> 5090</span><span class="comment">// }</span></div>
<div class="line"><a id="l05091" name="l05091"></a><span class="lineno"> 5091</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> M&gt;</div>
<div class="line"><a id="l05092" name="l05092"></a><span class="lineno"> 5092</span>std::string DescribeMatcher(<span class="keyword">const</span> M&amp; matcher, <span class="keywordtype">bool</span> negation = <span class="keyword">false</span>) {</div>
<div class="line"><a id="l05093" name="l05093"></a><span class="lineno"> 5093</span>  ::std::stringstream ss;</div>
<div class="line"><a id="l05094" name="l05094"></a><span class="lineno"> 5094</span>  <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;T&gt;</a> monomorphic_matcher = SafeMatcherCast&lt;T&gt;(matcher);</div>
<div class="line"><a id="l05095" name="l05095"></a><span class="lineno"> 5095</span>  <span class="keywordflow">if</span> (negation) {</div>
<div class="line"><a id="l05096" name="l05096"></a><span class="lineno"> 5096</span>    monomorphic_matcher.DescribeNegationTo(&amp;ss);</div>
<div class="line"><a id="l05097" name="l05097"></a><span class="lineno"> 5097</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l05098" name="l05098"></a><span class="lineno"> 5098</span>    monomorphic_matcher.DescribeTo(&amp;ss);</div>
<div class="line"><a id="l05099" name="l05099"></a><span class="lineno"> 5099</span>  }</div>
<div class="line"><a id="l05100" name="l05100"></a><span class="lineno"> 5100</span>  <span class="keywordflow">return</span> ss.str();</div>
<div class="line"><a id="l05101" name="l05101"></a><span class="lineno"> 5101</span>}</div>
<div class="line"><a id="l05102" name="l05102"></a><span class="lineno"> 5102</span> </div>
<div class="line"><a id="l05103" name="l05103"></a><span class="lineno"> 5103</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l05104" name="l05104"></a><span class="lineno"> 5104</span>internal::ElementsAreMatcher&lt;</div>
<div class="line"><a id="l05105" name="l05105"></a><span class="lineno"> 5105</span>    std::tuple&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;&gt;</div>
<div class="line"><a id="l05106" name="l05106"></a><span class="lineno"> 5106</span>ElementsAre(<span class="keyword">const</span> Args&amp;... matchers) {</div>
<div class="line"><a id="l05107" name="l05107"></a><span class="lineno"> 5107</span>  <span class="keywordflow">return</span> internal::ElementsAreMatcher&lt;</div>
<div class="line"><a id="l05108" name="l05108"></a><span class="lineno"> 5108</span>      std::tuple&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;&gt;(</div>
<div class="line"><a id="l05109" name="l05109"></a><span class="lineno"> 5109</span>      std::make_tuple(matchers...));</div>
<div class="line"><a id="l05110" name="l05110"></a><span class="lineno"> 5110</span>}</div>
<div class="line"><a id="l05111" name="l05111"></a><span class="lineno"> 5111</span> </div>
<div class="line"><a id="l05112" name="l05112"></a><span class="lineno"> 5112</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l05113" name="l05113"></a><span class="lineno"> 5113</span>internal::UnorderedElementsAreMatcher&lt;</div>
<div class="line"><a id="l05114" name="l05114"></a><span class="lineno"> 5114</span>    std::tuple&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;&gt;</div>
<div class="line"><a id="l05115" name="l05115"></a><span class="lineno"> 5115</span>UnorderedElementsAre(<span class="keyword">const</span> Args&amp;... matchers) {</div>
<div class="line"><a id="l05116" name="l05116"></a><span class="lineno"> 5116</span>  <span class="keywordflow">return</span> internal::UnorderedElementsAreMatcher&lt;</div>
<div class="line"><a id="l05117" name="l05117"></a><span class="lineno"> 5117</span>      std::tuple&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;&gt;(</div>
<div class="line"><a id="l05118" name="l05118"></a><span class="lineno"> 5118</span>      std::make_tuple(matchers...));</div>
<div class="line"><a id="l05119" name="l05119"></a><span class="lineno"> 5119</span>}</div>
<div class="line"><a id="l05120" name="l05120"></a><span class="lineno"> 5120</span> </div>
<div class="line"><a id="l05121" name="l05121"></a><span class="lineno"> 5121</span><span class="comment">// Define variadic matcher versions.</span></div>
<div class="line"><a id="l05122" name="l05122"></a><span class="lineno"> 5122</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l05123" name="l05123"></a><span class="lineno"> 5123</span>internal::AllOfMatcher&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt; AllOf(</div>
<div class="line"><a id="l05124" name="l05124"></a><span class="lineno"> 5124</span>    <span class="keyword">const</span> Args&amp;... matchers) {</div>
<div class="line"><a id="l05125" name="l05125"></a><span class="lineno"> 5125</span>  <span class="keywordflow">return</span> internal::AllOfMatcher&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;(</div>
<div class="line"><a id="l05126" name="l05126"></a><span class="lineno"> 5126</span>      matchers...);</div>
<div class="line"><a id="l05127" name="l05127"></a><span class="lineno"> 5127</span>}</div>
<div class="line"><a id="l05128" name="l05128"></a><span class="lineno"> 5128</span> </div>
<div class="line"><a id="l05129" name="l05129"></a><span class="lineno"> 5129</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a id="l05130" name="l05130"></a><span class="lineno"> 5130</span>internal::AnyOfMatcher&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt; AnyOf(</div>
<div class="line"><a id="l05131" name="l05131"></a><span class="lineno"> 5131</span>    <span class="keyword">const</span> Args&amp;... matchers) {</div>
<div class="line"><a id="l05132" name="l05132"></a><span class="lineno"> 5132</span>  <span class="keywordflow">return</span> internal::AnyOfMatcher&lt;typename std::decay&lt;const Args&amp;&gt;::type...&gt;(</div>
<div class="line"><a id="l05133" name="l05133"></a><span class="lineno"> 5133</span>      matchers...);</div>
<div class="line"><a id="l05134" name="l05134"></a><span class="lineno"> 5134</span>}</div>
<div class="line"><a id="l05135" name="l05135"></a><span class="lineno"> 5135</span> </div>
<div class="line"><a id="l05136" name="l05136"></a><span class="lineno"> 5136</span><span class="comment">// AnyOfArray(array)</span></div>
<div class="line"><a id="l05137" name="l05137"></a><span class="lineno"> 5137</span><span class="comment">// AnyOfArray(pointer, count)</span></div>
<div class="line"><a id="l05138" name="l05138"></a><span class="lineno"> 5138</span><span class="comment">// AnyOfArray(container)</span></div>
<div class="line"><a id="l05139" name="l05139"></a><span class="lineno"> 5139</span><span class="comment">// AnyOfArray({ e1, e2, ..., en })</span></div>
<div class="line"><a id="l05140" name="l05140"></a><span class="lineno"> 5140</span><span class="comment">// AnyOfArray(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l05141" name="l05141"></a><span class="lineno"> 5141</span><span class="comment">//</span></div>
<div class="line"><a id="l05142" name="l05142"></a><span class="lineno"> 5142</span><span class="comment">// AnyOfArray() verifies whether a given value matches any member of a</span></div>
<div class="line"><a id="l05143" name="l05143"></a><span class="lineno"> 5143</span><span class="comment">// collection of matchers.</span></div>
<div class="line"><a id="l05144" name="l05144"></a><span class="lineno"> 5144</span><span class="comment">//</span></div>
<div class="line"><a id="l05145" name="l05145"></a><span class="lineno"> 5145</span><span class="comment">// AllOfArray(array)</span></div>
<div class="line"><a id="l05146" name="l05146"></a><span class="lineno"> 5146</span><span class="comment">// AllOfArray(pointer, count)</span></div>
<div class="line"><a id="l05147" name="l05147"></a><span class="lineno"> 5147</span><span class="comment">// AllOfArray(container)</span></div>
<div class="line"><a id="l05148" name="l05148"></a><span class="lineno"> 5148</span><span class="comment">// AllOfArray({ e1, e2, ..., en })</span></div>
<div class="line"><a id="l05149" name="l05149"></a><span class="lineno"> 5149</span><span class="comment">// AllOfArray(iterator_first, iterator_last)</span></div>
<div class="line"><a id="l05150" name="l05150"></a><span class="lineno"> 5150</span><span class="comment">//</span></div>
<div class="line"><a id="l05151" name="l05151"></a><span class="lineno"> 5151</span><span class="comment">// AllOfArray() verifies whether a given value matches all members of a</span></div>
<div class="line"><a id="l05152" name="l05152"></a><span class="lineno"> 5152</span><span class="comment">// collection of matchers.</span></div>
<div class="line"><a id="l05153" name="l05153"></a><span class="lineno"> 5153</span><span class="comment">//</span></div>
<div class="line"><a id="l05154" name="l05154"></a><span class="lineno"> 5154</span><span class="comment">// The matchers can be specified as an array, a pointer and count, a container,</span></div>
<div class="line"><a id="l05155" name="l05155"></a><span class="lineno"> 5155</span><span class="comment">// an initializer list, or an STL iterator range. In each of these cases, the</span></div>
<div class="line"><a id="l05156" name="l05156"></a><span class="lineno"> 5156</span><span class="comment">// underlying matchers can be either values or matchers.</span></div>
<div class="line"><a id="l05157" name="l05157"></a><span class="lineno"> 5157</span> </div>
<div class="line"><a id="l05158" name="l05158"></a><span class="lineno"> 5158</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l05159" name="l05159"></a><span class="lineno"> 5159</span><span class="keyword">inline</span> internal::AnyOfArrayMatcher&lt;</div>
<div class="line"><a id="l05160" name="l05160"></a><span class="lineno"> 5160</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l05161" name="l05161"></a><span class="lineno"> 5161</span>AnyOfArray(Iter first, Iter last) {</div>
<div class="line"><a id="l05162" name="l05162"></a><span class="lineno"> 5162</span>  <span class="keywordflow">return</span> internal::AnyOfArrayMatcher&lt;</div>
<div class="line"><a id="l05163" name="l05163"></a><span class="lineno"> 5163</span>      typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;(first, last);</div>
<div class="line"><a id="l05164" name="l05164"></a><span class="lineno"> 5164</span>}</div>
<div class="line"><a id="l05165" name="l05165"></a><span class="lineno"> 5165</span> </div>
<div class="line"><a id="l05166" name="l05166"></a><span class="lineno"> 5166</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iter&gt;</div>
<div class="line"><a id="l05167" name="l05167"></a><span class="lineno"> 5167</span><span class="keyword">inline</span> internal::AllOfArrayMatcher&lt;</div>
<div class="line"><a id="l05168" name="l05168"></a><span class="lineno"> 5168</span>    typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;</div>
<div class="line"><a id="l05169" name="l05169"></a><span class="lineno"> 5169</span>AllOfArray(Iter first, Iter last) {</div>
<div class="line"><a id="l05170" name="l05170"></a><span class="lineno"> 5170</span>  <span class="keywordflow">return</span> internal::AllOfArrayMatcher&lt;</div>
<div class="line"><a id="l05171" name="l05171"></a><span class="lineno"> 5171</span>      typename ::std::iterator_traits&lt;Iter&gt;::value_type&gt;(first, last);</div>
<div class="line"><a id="l05172" name="l05172"></a><span class="lineno"> 5172</span>}</div>
<div class="line"><a id="l05173" name="l05173"></a><span class="lineno"> 5173</span> </div>
<div class="line"><a id="l05174" name="l05174"></a><span class="lineno"> 5174</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05175" name="l05175"></a><span class="lineno"> 5175</span><span class="keyword">inline</span> internal::AnyOfArrayMatcher&lt;T&gt; AnyOfArray(<span class="keyword">const</span> T* ptr, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l05176" name="l05176"></a><span class="lineno"> 5176</span>  <span class="keywordflow">return</span> AnyOfArray(ptr, ptr + count);</div>
<div class="line"><a id="l05177" name="l05177"></a><span class="lineno"> 5177</span>}</div>
<div class="line"><a id="l05178" name="l05178"></a><span class="lineno"> 5178</span> </div>
<div class="line"><a id="l05179" name="l05179"></a><span class="lineno"> 5179</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05180" name="l05180"></a><span class="lineno"> 5180</span><span class="keyword">inline</span> internal::AllOfArrayMatcher&lt;T&gt; AllOfArray(<span class="keyword">const</span> T* ptr, <span class="keywordtype">size_t</span> count) {</div>
<div class="line"><a id="l05181" name="l05181"></a><span class="lineno"> 5181</span>  <span class="keywordflow">return</span> AllOfArray(ptr, ptr + count);</div>
<div class="line"><a id="l05182" name="l05182"></a><span class="lineno"> 5182</span>}</div>
<div class="line"><a id="l05183" name="l05183"></a><span class="lineno"> 5183</span> </div>
<div class="line"><a id="l05184" name="l05184"></a><span class="lineno"> 5184</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l05185" name="l05185"></a><span class="lineno"> 5185</span><span class="keyword">inline</span> internal::AnyOfArrayMatcher&lt;T&gt; AnyOfArray(<span class="keyword">const</span> T (&amp;array)[N]) {</div>
<div class="line"><a id="l05186" name="l05186"></a><span class="lineno"> 5186</span>  <span class="keywordflow">return</span> AnyOfArray(array, N);</div>
<div class="line"><a id="l05187" name="l05187"></a><span class="lineno"> 5187</span>}</div>
<div class="line"><a id="l05188" name="l05188"></a><span class="lineno"> 5188</span> </div>
<div class="line"><a id="l05189" name="l05189"></a><span class="lineno"> 5189</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="line"><a id="l05190" name="l05190"></a><span class="lineno"> 5190</span><span class="keyword">inline</span> internal::AllOfArrayMatcher&lt;T&gt; AllOfArray(<span class="keyword">const</span> T (&amp;array)[N]) {</div>
<div class="line"><a id="l05191" name="l05191"></a><span class="lineno"> 5191</span>  <span class="keywordflow">return</span> AllOfArray(array, N);</div>
<div class="line"><a id="l05192" name="l05192"></a><span class="lineno"> 5192</span>}</div>
<div class="line"><a id="l05193" name="l05193"></a><span class="lineno"> 5193</span> </div>
<div class="line"><a id="l05194" name="l05194"></a><span class="lineno"> 5194</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l05195" name="l05195"></a><span class="lineno"> 5195</span><span class="keyword">inline</span> internal::AnyOfArrayMatcher&lt;typename Container::value_type&gt; AnyOfArray(</div>
<div class="line"><a id="l05196" name="l05196"></a><span class="lineno"> 5196</span>    <span class="keyword">const</span> Container&amp; container) {</div>
<div class="line"><a id="l05197" name="l05197"></a><span class="lineno"> 5197</span>  <span class="keywordflow">return</span> AnyOfArray(container.begin(), container.end());</div>
<div class="line"><a id="l05198" name="l05198"></a><span class="lineno"> 5198</span>}</div>
<div class="line"><a id="l05199" name="l05199"></a><span class="lineno"> 5199</span> </div>
<div class="line"><a id="l05200" name="l05200"></a><span class="lineno"> 5200</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Container&gt;</div>
<div class="line"><a id="l05201" name="l05201"></a><span class="lineno"> 5201</span><span class="keyword">inline</span> internal::AllOfArrayMatcher&lt;typename Container::value_type&gt; AllOfArray(</div>
<div class="line"><a id="l05202" name="l05202"></a><span class="lineno"> 5202</span>    <span class="keyword">const</span> Container&amp; container) {</div>
<div class="line"><a id="l05203" name="l05203"></a><span class="lineno"> 5203</span>  <span class="keywordflow">return</span> AllOfArray(container.begin(), container.end());</div>
<div class="line"><a id="l05204" name="l05204"></a><span class="lineno"> 5204</span>}</div>
<div class="line"><a id="l05205" name="l05205"></a><span class="lineno"> 5205</span> </div>
<div class="line"><a id="l05206" name="l05206"></a><span class="lineno"> 5206</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05207" name="l05207"></a><span class="lineno"> 5207</span><span class="keyword">inline</span> internal::AnyOfArrayMatcher&lt;T&gt; AnyOfArray(</div>
<div class="line"><a id="l05208" name="l05208"></a><span class="lineno"> 5208</span>    ::std::initializer_list&lt;T&gt; xs) {</div>
<div class="line"><a id="l05209" name="l05209"></a><span class="lineno"> 5209</span>  <span class="keywordflow">return</span> AnyOfArray(xs.begin(), xs.end());</div>
<div class="line"><a id="l05210" name="l05210"></a><span class="lineno"> 5210</span>}</div>
<div class="line"><a id="l05211" name="l05211"></a><span class="lineno"> 5211</span> </div>
<div class="line"><a id="l05212" name="l05212"></a><span class="lineno"> 5212</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05213" name="l05213"></a><span class="lineno"> 5213</span><span class="keyword">inline</span> internal::AllOfArrayMatcher&lt;T&gt; AllOfArray(</div>
<div class="line"><a id="l05214" name="l05214"></a><span class="lineno"> 5214</span>    ::std::initializer_list&lt;T&gt; xs) {</div>
<div class="line"><a id="l05215" name="l05215"></a><span class="lineno"> 5215</span>  <span class="keywordflow">return</span> AllOfArray(xs.begin(), xs.end());</div>
<div class="line"><a id="l05216" name="l05216"></a><span class="lineno"> 5216</span>}</div>
<div class="line"><a id="l05217" name="l05217"></a><span class="lineno"> 5217</span> </div>
<div class="line"><a id="l05218" name="l05218"></a><span class="lineno"> 5218</span><span class="comment">// Args&lt;N1, N2, ..., Nk&gt;(a_matcher) matches a tuple if the selected</span></div>
<div class="line"><a id="l05219" name="l05219"></a><span class="lineno"> 5219</span><span class="comment">// fields of it matches a_matcher.  C++ doesn&#39;t support default</span></div>
<div class="line"><a id="l05220" name="l05220"></a><span class="lineno"> 5220</span><span class="comment">// arguments for function templates, so we have to overload it.</span></div>
<div class="line"><a id="l05221" name="l05221"></a><span class="lineno"> 5221</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span>... k, <span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l05222" name="l05222"></a><span class="lineno"> 5222</span>internal::ArgsMatcher&lt;typename std::decay&lt;InnerMatcher&gt;::type, k...&gt; Args(</div>
<div class="line"><a id="l05223" name="l05223"></a><span class="lineno"> 5223</span>    InnerMatcher&amp;&amp; matcher) {</div>
<div class="line"><a id="l05224" name="l05224"></a><span class="lineno"> 5224</span>  <span class="keywordflow">return</span> internal::ArgsMatcher&lt;typename std::decay&lt;InnerMatcher&gt;::type, k...&gt;(</div>
<div class="line"><a id="l05225" name="l05225"></a><span class="lineno"> 5225</span>      std::forward&lt;InnerMatcher&gt;(matcher));</div>
<div class="line"><a id="l05226" name="l05226"></a><span class="lineno"> 5226</span>}</div>
<div class="line"><a id="l05227" name="l05227"></a><span class="lineno"> 5227</span> </div>
<div class="line"><a id="l05228" name="l05228"></a><span class="lineno"> 5228</span><span class="comment">// AllArgs(m) is a synonym of m.  This is useful in</span></div>
<div class="line"><a id="l05229" name="l05229"></a><span class="lineno"> 5229</span><span class="comment">//</span></div>
<div class="line"><a id="l05230" name="l05230"></a><span class="lineno"> 5230</span><span class="comment">//   EXPECT_CALL(foo, Bar(_, _)).With(AllArgs(Eq()));</span></div>
<div class="line"><a id="l05231" name="l05231"></a><span class="lineno"> 5231</span><span class="comment">//</span></div>
<div class="line"><a id="l05232" name="l05232"></a><span class="lineno"> 5232</span><span class="comment">// which is easier to read than</span></div>
<div class="line"><a id="l05233" name="l05233"></a><span class="lineno"> 5233</span><span class="comment">//</span></div>
<div class="line"><a id="l05234" name="l05234"></a><span class="lineno"> 5234</span><span class="comment">//   EXPECT_CALL(foo, Bar(_, _)).With(Eq());</span></div>
<div class="line"><a id="l05235" name="l05235"></a><span class="lineno"> 5235</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> InnerMatcher&gt;</div>
<div class="line"><a id="l05236" name="l05236"></a><span class="lineno"> 5236</span><span class="keyword">inline</span> InnerMatcher AllArgs(<span class="keyword">const</span> InnerMatcher&amp; matcher) {</div>
<div class="line"><a id="l05237" name="l05237"></a><span class="lineno"> 5237</span>  <span class="keywordflow">return</span> matcher;</div>
<div class="line"><a id="l05238" name="l05238"></a><span class="lineno"> 5238</span>}</div>
<div class="line"><a id="l05239" name="l05239"></a><span class="lineno"> 5239</span> </div>
<div class="line"><a id="l05240" name="l05240"></a><span class="lineno"> 5240</span><span class="comment">// Returns a matcher that matches the value of an optional&lt;&gt; type variable.</span></div>
<div class="line"><a id="l05241" name="l05241"></a><span class="lineno"> 5241</span><span class="comment">// The matcher implementation only uses &#39;!arg&#39; and requires that the optional&lt;&gt;</span></div>
<div class="line"><a id="l05242" name="l05242"></a><span class="lineno"> 5242</span><span class="comment">// type has a &#39;value_type&#39; member type and that &#39;*arg&#39; is of type &#39;value_type&#39;</span></div>
<div class="line"><a id="l05243" name="l05243"></a><span class="lineno"> 5243</span><span class="comment">// and is printable using &#39;PrintToString&#39;. It is compatible with</span></div>
<div class="line"><a id="l05244" name="l05244"></a><span class="lineno"> 5244</span><span class="comment">// std::optional/std::experimental::optional.</span></div>
<div class="line"><a id="l05245" name="l05245"></a><span class="lineno"> 5245</span><span class="comment">// Note that to compare an optional type variable against nullopt you should</span></div>
<div class="line"><a id="l05246" name="l05246"></a><span class="lineno"> 5246</span><span class="comment">// use Eq(nullopt) and not Eq(Optional(nullopt)). The latter implies that the</span></div>
<div class="line"><a id="l05247" name="l05247"></a><span class="lineno"> 5247</span><span class="comment">// optional value contains an optional itself.</span></div>
<div class="line"><a id="l05248" name="l05248"></a><span class="lineno"> 5248</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> ValueMatcher&gt;</div>
<div class="line"><a id="l05249" name="l05249"></a><span class="lineno"> 5249</span><span class="keyword">inline</span> internal::OptionalMatcher&lt;ValueMatcher&gt; Optional(</div>
<div class="line"><a id="l05250" name="l05250"></a><span class="lineno"> 5250</span>    <span class="keyword">const</span> ValueMatcher&amp; value_matcher) {</div>
<div class="line"><a id="l05251" name="l05251"></a><span class="lineno"> 5251</span>  <span class="keywordflow">return</span> internal::OptionalMatcher&lt;ValueMatcher&gt;(value_matcher);</div>
<div class="line"><a id="l05252" name="l05252"></a><span class="lineno"> 5252</span>}</div>
<div class="line"><a id="l05253" name="l05253"></a><span class="lineno"> 5253</span> </div>
<div class="line"><a id="l05254" name="l05254"></a><span class="lineno"> 5254</span><span class="comment">// Returns a matcher that matches the value of a absl::any type variable.</span></div>
<div class="line"><a id="l05255" name="l05255"></a><span class="lineno"> 5255</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05256" name="l05256"></a><span class="lineno"> 5256</span>PolymorphicMatcher&lt;internal::any_cast_matcher::AnyCastMatcher&lt;T&gt;&gt; AnyWith(</div>
<div class="line"><a id="l05257" name="l05257"></a><span class="lineno"> 5257</span>    <span class="keyword">const</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;const T&amp;&gt;</a>&amp; matcher) {</div>
<div class="line"><a id="l05258" name="l05258"></a><span class="lineno"> 5258</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l05259" name="l05259"></a><span class="lineno"> 5259</span>      internal::any_cast_matcher::AnyCastMatcher&lt;T&gt;(matcher));</div>
<div class="line"><a id="l05260" name="l05260"></a><span class="lineno"> 5260</span>}</div>
<div class="line"><a id="l05261" name="l05261"></a><span class="lineno"> 5261</span> </div>
<div class="line"><a id="l05262" name="l05262"></a><span class="lineno"> 5262</span><span class="comment">// Returns a matcher that matches the value of a variant&lt;&gt; type variable.</span></div>
<div class="line"><a id="l05263" name="l05263"></a><span class="lineno"> 5263</span><span class="comment">// The matcher implementation uses ADL to find the holds_alternative and get</span></div>
<div class="line"><a id="l05264" name="l05264"></a><span class="lineno"> 5264</span><span class="comment">// functions.</span></div>
<div class="line"><a id="l05265" name="l05265"></a><span class="lineno"> 5265</span><span class="comment">// It is compatible with std::variant.</span></div>
<div class="line"><a id="l05266" name="l05266"></a><span class="lineno"> 5266</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05267" name="l05267"></a><span class="lineno"> 5267</span>PolymorphicMatcher&lt;internal::variant_matcher::VariantMatcher&lt;T&gt;&gt; VariantWith(</div>
<div class="line"><a id="l05268" name="l05268"></a><span class="lineno"> 5268</span>    <span class="keyword">const</span> <a class="code hl_class" href="classtesting_1_1_matcher.html">Matcher&lt;const T&amp;&gt;</a>&amp; matcher) {</div>
<div class="line"><a id="l05269" name="l05269"></a><span class="lineno"> 5269</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l05270" name="l05270"></a><span class="lineno"> 5270</span>      internal::variant_matcher::VariantMatcher&lt;T&gt;(matcher));</div>
<div class="line"><a id="l05271" name="l05271"></a><span class="lineno"> 5271</span>}</div>
<div class="line"><a id="l05272" name="l05272"></a><span class="lineno"> 5272</span> </div>
<div class="line"><a id="l05273" name="l05273"></a><span class="lineno"> 5273</span><span class="preprocessor">#if GTEST_HAS_EXCEPTIONS</span></div>
<div class="line"><a id="l05274" name="l05274"></a><span class="lineno"> 5274</span> </div>
<div class="line"><a id="l05275" name="l05275"></a><span class="lineno"> 5275</span><span class="comment">// Anything inside the `internal` namespace is internal to the implementation</span></div>
<div class="line"><a id="l05276" name="l05276"></a><span class="lineno"> 5276</span><span class="comment">// and must not be used in user code!</span></div>
<div class="line"><a id="l05277" name="l05277"></a><span class="lineno"> 5277</span><span class="keyword">namespace </span>internal {</div>
<div class="line"><a id="l05278" name="l05278"></a><span class="lineno"> 5278</span> </div>
<div class="line"><a id="l05279" name="l05279"></a><span class="lineno"> 5279</span><span class="keyword">class </span>WithWhatMatcherImpl {</div>
<div class="line"><a id="l05280" name="l05280"></a><span class="lineno"> 5280</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l05281" name="l05281"></a><span class="lineno"> 5281</span>  WithWhatMatcherImpl(Matcher&lt;std::string&gt; matcher)</div>
<div class="line"><a id="l05282" name="l05282"></a><span class="lineno"> 5282</span>      : matcher_(std::move(matcher)) {}</div>
<div class="line"><a id="l05283" name="l05283"></a><span class="lineno"> 5283</span> </div>
<div class="line"><a id="l05284" name="l05284"></a><span class="lineno"> 5284</span>  <span class="keywordtype">void</span> DescribeTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05285" name="l05285"></a><span class="lineno"> 5285</span>    *os &lt;&lt; <span class="stringliteral">&quot;contains .what() that &quot;</span>;</div>
<div class="line"><a id="l05286" name="l05286"></a><span class="lineno"> 5286</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l05287" name="l05287"></a><span class="lineno"> 5287</span>  }</div>
<div class="line"><a id="l05288" name="l05288"></a><span class="lineno"> 5288</span> </div>
<div class="line"><a id="l05289" name="l05289"></a><span class="lineno"> 5289</span>  <span class="keywordtype">void</span> DescribeNegationTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05290" name="l05290"></a><span class="lineno"> 5290</span>    *os &lt;&lt; <span class="stringliteral">&quot;contains .what() that does not &quot;</span>;</div>
<div class="line"><a id="l05291" name="l05291"></a><span class="lineno"> 5291</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l05292" name="l05292"></a><span class="lineno"> 5292</span>  }</div>
<div class="line"><a id="l05293" name="l05293"></a><span class="lineno"> 5293</span> </div>
<div class="line"><a id="l05294" name="l05294"></a><span class="lineno"> 5294</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Err&gt;</div>
<div class="line"><a id="l05295" name="l05295"></a><span class="lineno"> 5295</span>  <span class="keywordtype">bool</span> MatchAndExplain(<span class="keyword">const</span> Err&amp; err, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05296" name="l05296"></a><span class="lineno"> 5296</span>    *listener &lt;&lt; <span class="stringliteral">&quot;which contains .what() (of value = &quot;</span> &lt;&lt; err.what()</div>
<div class="line"><a id="l05297" name="l05297"></a><span class="lineno"> 5297</span>              &lt;&lt; <span class="stringliteral">&quot;) that &quot;</span>;</div>
<div class="line"><a id="l05298" name="l05298"></a><span class="lineno"> 5298</span>    <span class="keywordflow">return</span> matcher_.MatchAndExplain(err.what(), listener);</div>
<div class="line"><a id="l05299" name="l05299"></a><span class="lineno"> 5299</span>  }</div>
<div class="line"><a id="l05300" name="l05300"></a><span class="lineno"> 5300</span> </div>
<div class="line"><a id="l05301" name="l05301"></a><span class="lineno"> 5301</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l05302" name="l05302"></a><span class="lineno"> 5302</span>  <span class="keyword">const</span> Matcher&lt;std::string&gt; matcher_;</div>
<div class="line"><a id="l05303" name="l05303"></a><span class="lineno"> 5303</span>};</div>
<div class="line"><a id="l05304" name="l05304"></a><span class="lineno"> 5304</span> </div>
<div class="line"><a id="l05305" name="l05305"></a><span class="lineno"> 5305</span><span class="keyword">inline</span> PolymorphicMatcher&lt;WithWhatMatcherImpl&gt; WithWhat(</div>
<div class="line"><a id="l05306" name="l05306"></a><span class="lineno"> 5306</span>    Matcher&lt;std::string&gt; m) {</div>
<div class="line"><a id="l05307" name="l05307"></a><span class="lineno"> 5307</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(WithWhatMatcherImpl(std::move(m)));</div>
<div class="line"><a id="l05308" name="l05308"></a><span class="lineno"> 5308</span>}</div>
<div class="line"><a id="l05309" name="l05309"></a><span class="lineno"> 5309</span> </div>
<div class="line"><a id="l05310" name="l05310"></a><span class="lineno"> 5310</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Err&gt;</div>
<div class="line"><a id="l05311" name="l05311"></a><span class="lineno"> 5311</span><span class="keyword">class </span>ExceptionMatcherImpl {</div>
<div class="line"><a id="l05312" name="l05312"></a><span class="lineno"> 5312</span>  <span class="keyword">class </span>NeverThrown {</div>
<div class="line"><a id="l05313" name="l05313"></a><span class="lineno"> 5313</span>   <span class="keyword">public</span>:</div>
<div class="line"><a id="l05314" name="l05314"></a><span class="lineno"> 5314</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* what() const noexcept {</div>
<div class="line"><a id="l05315" name="l05315"></a><span class="lineno"> 5315</span>      <span class="keywordflow">return</span> <span class="stringliteral">&quot;this exception should never be thrown&quot;</span>;</div>
<div class="line"><a id="l05316" name="l05316"></a><span class="lineno"> 5316</span>    }</div>
<div class="line"><a id="l05317" name="l05317"></a><span class="lineno"> 5317</span>  };</div>
<div class="line"><a id="l05318" name="l05318"></a><span class="lineno"> 5318</span> </div>
<div class="line"><a id="l05319" name="l05319"></a><span class="lineno"> 5319</span>  <span class="comment">// If the matchee raises an exception of a wrong type, we&#39;d like to</span></div>
<div class="line"><a id="l05320" name="l05320"></a><span class="lineno"> 5320</span>  <span class="comment">// catch it and print its message and type. To do that, we add an additional</span></div>
<div class="line"><a id="l05321" name="l05321"></a><span class="lineno"> 5321</span>  <span class="comment">// catch clause:</span></div>
<div class="line"><a id="l05322" name="l05322"></a><span class="lineno"> 5322</span>  <span class="comment">//</span></div>
<div class="line"><a id="l05323" name="l05323"></a><span class="lineno"> 5323</span>  <span class="comment">//     try { ... }</span></div>
<div class="line"><a id="l05324" name="l05324"></a><span class="lineno"> 5324</span>  <span class="comment">//     catch (const Err&amp;) { /* an expected exception */ }</span></div>
<div class="line"><a id="l05325" name="l05325"></a><span class="lineno"> 5325</span>  <span class="comment">//     catch (const std::exception&amp;) { /* exception of a wrong type */ }</span></div>
<div class="line"><a id="l05326" name="l05326"></a><span class="lineno"> 5326</span>  <span class="comment">//</span></div>
<div class="line"><a id="l05327" name="l05327"></a><span class="lineno"> 5327</span>  <span class="comment">// However, if the `Err` itself is `std::exception`, we&#39;d end up with two</span></div>
<div class="line"><a id="l05328" name="l05328"></a><span class="lineno"> 5328</span>  <span class="comment">// identical `catch` clauses:</span></div>
<div class="line"><a id="l05329" name="l05329"></a><span class="lineno"> 5329</span>  <span class="comment">//</span></div>
<div class="line"><a id="l05330" name="l05330"></a><span class="lineno"> 5330</span>  <span class="comment">//     try { ... }</span></div>
<div class="line"><a id="l05331" name="l05331"></a><span class="lineno"> 5331</span>  <span class="comment">//     catch (const std::exception&amp;) { /* an expected exception */ }</span></div>
<div class="line"><a id="l05332" name="l05332"></a><span class="lineno"> 5332</span>  <span class="comment">//     catch (const std::exception&amp;) { /* exception of a wrong type */ }</span></div>
<div class="line"><a id="l05333" name="l05333"></a><span class="lineno"> 5333</span>  <span class="comment">//</span></div>
<div class="line"><a id="l05334" name="l05334"></a><span class="lineno"> 5334</span>  <span class="comment">// This can cause a warning or an error in some compilers. To resolve</span></div>
<div class="line"><a id="l05335" name="l05335"></a><span class="lineno"> 5335</span>  <span class="comment">// the issue, we use a fake error type whenever `Err` is `std::exception`:</span></div>
<div class="line"><a id="l05336" name="l05336"></a><span class="lineno"> 5336</span>  <span class="comment">//</span></div>
<div class="line"><a id="l05337" name="l05337"></a><span class="lineno"> 5337</span>  <span class="comment">//     try { ... }</span></div>
<div class="line"><a id="l05338" name="l05338"></a><span class="lineno"> 5338</span>  <span class="comment">//     catch (const std::exception&amp;) { /* an expected exception */ }</span></div>
<div class="line"><a id="l05339" name="l05339"></a><span class="lineno"> 5339</span>  <span class="comment">//     catch (const NeverThrown&amp;) { /* exception of a wrong type */ }</span></div>
<div class="line"><a id="l05340" name="l05340"></a><span class="lineno"> 5340</span>  <span class="keyword">using </span>DefaultExceptionType = <span class="keyword">typename</span> std::conditional&lt;</div>
<div class="line"><a id="l05341" name="l05341"></a><span class="lineno"> 5341</span>      std::is_same&lt;<span class="keyword">typename</span> std::remove_cv&lt;</div>
<div class="line"><a id="l05342" name="l05342"></a><span class="lineno"> 5342</span>                       <span class="keyword">typename</span> std::remove_reference&lt;Err&gt;::type&gt;::type,</div>
<div class="line"><a id="l05343" name="l05343"></a><span class="lineno"> 5343</span>                   std::exception&gt;::value,</div>
<div class="line"><a id="l05344" name="l05344"></a><span class="lineno"> 5344</span>      <span class="keyword">const</span> NeverThrown&amp;, <span class="keyword">const</span> std::exception&amp;&gt;::type;</div>
<div class="line"><a id="l05345" name="l05345"></a><span class="lineno"> 5345</span> </div>
<div class="line"><a id="l05346" name="l05346"></a><span class="lineno"> 5346</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l05347" name="l05347"></a><span class="lineno"> 5347</span>  ExceptionMatcherImpl(Matcher&lt;const Err&amp;&gt; matcher)</div>
<div class="line"><a id="l05348" name="l05348"></a><span class="lineno"> 5348</span>      : matcher_(std::move(matcher)) {}</div>
<div class="line"><a id="l05349" name="l05349"></a><span class="lineno"> 5349</span> </div>
<div class="line"><a id="l05350" name="l05350"></a><span class="lineno"> 5350</span>  <span class="keywordtype">void</span> DescribeTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05351" name="l05351"></a><span class="lineno"> 5351</span>    *os &lt;&lt; <span class="stringliteral">&quot;throws an exception which is a &quot;</span> &lt;&lt; GetTypeName&lt;Err&gt;();</div>
<div class="line"><a id="l05352" name="l05352"></a><span class="lineno"> 5352</span>    *os &lt;&lt; <span class="stringliteral">&quot; which &quot;</span>;</div>
<div class="line"><a id="l05353" name="l05353"></a><span class="lineno"> 5353</span>    matcher_.DescribeTo(os);</div>
<div class="line"><a id="l05354" name="l05354"></a><span class="lineno"> 5354</span>  }</div>
<div class="line"><a id="l05355" name="l05355"></a><span class="lineno"> 5355</span> </div>
<div class="line"><a id="l05356" name="l05356"></a><span class="lineno"> 5356</span>  <span class="keywordtype">void</span> DescribeNegationTo(std::ostream* os)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05357" name="l05357"></a><span class="lineno"> 5357</span>    *os &lt;&lt; <span class="stringliteral">&quot;throws an exception which is not a &quot;</span> &lt;&lt; GetTypeName&lt;Err&gt;();</div>
<div class="line"><a id="l05358" name="l05358"></a><span class="lineno"> 5358</span>    *os &lt;&lt; <span class="stringliteral">&quot; which &quot;</span>;</div>
<div class="line"><a id="l05359" name="l05359"></a><span class="lineno"> 5359</span>    matcher_.DescribeNegationTo(os);</div>
<div class="line"><a id="l05360" name="l05360"></a><span class="lineno"> 5360</span>  }</div>
<div class="line"><a id="l05361" name="l05361"></a><span class="lineno"> 5361</span> </div>
<div class="line"><a id="l05362" name="l05362"></a><span class="lineno"> 5362</span>  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l05363" name="l05363"></a><span class="lineno"> 5363</span>  <span class="keywordtype">bool</span> MatchAndExplain(T&amp;&amp; x, MatchResultListener* listener)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l05364" name="l05364"></a><span class="lineno"> 5364</span>    <span class="keywordflow">try</span> {</div>
<div class="line"><a id="l05365" name="l05365"></a><span class="lineno"> 5365</span>      (void)(std::forward&lt;T&gt;(x)());</div>
<div class="line"><a id="l05366" name="l05366"></a><span class="lineno"> 5366</span>    } <span class="keywordflow">catch</span> (<span class="keyword">const</span> Err&amp; err) {</div>
<div class="line"><a id="l05367" name="l05367"></a><span class="lineno"> 5367</span>      *listener &lt;&lt; <span class="stringliteral">&quot;throws an exception which is a &quot;</span> &lt;&lt; GetTypeName&lt;Err&gt;();</div>
<div class="line"><a id="l05368" name="l05368"></a><span class="lineno"> 5368</span>      *listener &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l05369" name="l05369"></a><span class="lineno"> 5369</span>      <span class="keywordflow">return</span> matcher_.MatchAndExplain(err, listener);</div>
<div class="line"><a id="l05370" name="l05370"></a><span class="lineno"> 5370</span>    } <span class="keywordflow">catch</span> (DefaultExceptionType err) {</div>
<div class="line"><a id="l05371" name="l05371"></a><span class="lineno"> 5371</span><span class="preprocessor">#if GTEST_HAS_RTTI</span></div>
<div class="line"><a id="l05372" name="l05372"></a><span class="lineno"> 5372</span>      *listener &lt;&lt; <span class="stringliteral">&quot;throws an exception of type &quot;</span> &lt;&lt; GetTypeName(<span class="keyword">typeid</span>(err));</div>
<div class="line"><a id="l05373" name="l05373"></a><span class="lineno"> 5373</span>      *listener &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l05374" name="l05374"></a><span class="lineno"> 5374</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l05375" name="l05375"></a><span class="lineno"> 5375</span>      *listener &lt;&lt; <span class="stringliteral">&quot;throws an std::exception-derived type &quot;</span>;</div>
<div class="line"><a id="l05376" name="l05376"></a><span class="lineno"> 5376</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l05377" name="l05377"></a><span class="lineno"> 5377</span>      *listener &lt;&lt; <span class="stringliteral">&quot;with description \&quot;&quot;</span> &lt;&lt; err.what() &lt;&lt; <span class="stringliteral">&quot;\&quot;&quot;</span>;</div>
<div class="line"><a id="l05378" name="l05378"></a><span class="lineno"> 5378</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l05379" name="l05379"></a><span class="lineno"> 5379</span>    } <span class="keywordflow">catch</span> (...) {</div>
<div class="line"><a id="l05380" name="l05380"></a><span class="lineno"> 5380</span>      *listener &lt;&lt; <span class="stringliteral">&quot;throws an exception of an unknown type&quot;</span>;</div>
<div class="line"><a id="l05381" name="l05381"></a><span class="lineno"> 5381</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l05382" name="l05382"></a><span class="lineno"> 5382</span>    }</div>
<div class="line"><a id="l05383" name="l05383"></a><span class="lineno"> 5383</span> </div>
<div class="line"><a id="l05384" name="l05384"></a><span class="lineno"> 5384</span>    *listener &lt;&lt; <span class="stringliteral">&quot;does not throw any exception&quot;</span>;</div>
<div class="line"><a id="l05385" name="l05385"></a><span class="lineno"> 5385</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l05386" name="l05386"></a><span class="lineno"> 5386</span>  }</div>
<div class="line"><a id="l05387" name="l05387"></a><span class="lineno"> 5387</span> </div>
<div class="line"><a id="l05388" name="l05388"></a><span class="lineno"> 5388</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l05389" name="l05389"></a><span class="lineno"> 5389</span>  <span class="keyword">const</span> Matcher&lt;const Err&amp;&gt; matcher_;</div>
<div class="line"><a id="l05390" name="l05390"></a><span class="lineno"> 5390</span>};</div>
<div class="line"><a id="l05391" name="l05391"></a><span class="lineno"> 5391</span> </div>
<div class="line"><a id="l05392" name="l05392"></a><span class="lineno"> 5392</span>}  <span class="comment">// namespace internal</span></div>
<div class="line"><a id="l05393" name="l05393"></a><span class="lineno"> 5393</span> </div>
<div class="line"><a id="l05394" name="l05394"></a><span class="lineno"> 5394</span><span class="comment">// Throws()</span></div>
<div class="line"><a id="l05395" name="l05395"></a><span class="lineno"> 5395</span><span class="comment">// Throws(exceptionMatcher)</span></div>
<div class="line"><a id="l05396" name="l05396"></a><span class="lineno"> 5396</span><span class="comment">// ThrowsMessage(messageMatcher)</span></div>
<div class="line"><a id="l05397" name="l05397"></a><span class="lineno"> 5397</span><span class="comment">//</span></div>
<div class="line"><a id="l05398" name="l05398"></a><span class="lineno"> 5398</span><span class="comment">// This matcher accepts a callable and verifies that when invoked, it throws</span></div>
<div class="line"><a id="l05399" name="l05399"></a><span class="lineno"> 5399</span><span class="comment">// an exception with the given type and properties.</span></div>
<div class="line"><a id="l05400" name="l05400"></a><span class="lineno"> 5400</span><span class="comment">//</span></div>
<div class="line"><a id="l05401" name="l05401"></a><span class="lineno"> 5401</span><span class="comment">// Examples:</span></div>
<div class="line"><a id="l05402" name="l05402"></a><span class="lineno"> 5402</span><span class="comment">//</span></div>
<div class="line"><a id="l05403" name="l05403"></a><span class="lineno"> 5403</span><span class="comment">//   EXPECT_THAT(</span></div>
<div class="line"><a id="l05404" name="l05404"></a><span class="lineno"> 5404</span><span class="comment">//       []() { throw std::runtime_error(&quot;message&quot;); },</span></div>
<div class="line"><a id="l05405" name="l05405"></a><span class="lineno"> 5405</span><span class="comment">//       Throws&lt;std::runtime_error&gt;());</span></div>
<div class="line"><a id="l05406" name="l05406"></a><span class="lineno"> 5406</span><span class="comment">//</span></div>
<div class="line"><a id="l05407" name="l05407"></a><span class="lineno"> 5407</span><span class="comment">//   EXPECT_THAT(</span></div>
<div class="line"><a id="l05408" name="l05408"></a><span class="lineno"> 5408</span><span class="comment">//       []() { throw std::runtime_error(&quot;message&quot;); },</span></div>
<div class="line"><a id="l05409" name="l05409"></a><span class="lineno"> 5409</span><span class="comment">//       ThrowsMessage&lt;std::runtime_error&gt;(HasSubstr(&quot;message&quot;)));</span></div>
<div class="line"><a id="l05410" name="l05410"></a><span class="lineno"> 5410</span><span class="comment">//</span></div>
<div class="line"><a id="l05411" name="l05411"></a><span class="lineno"> 5411</span><span class="comment">//   EXPECT_THAT(</span></div>
<div class="line"><a id="l05412" name="l05412"></a><span class="lineno"> 5412</span><span class="comment">//       []() { throw std::runtime_error(&quot;message&quot;); },</span></div>
<div class="line"><a id="l05413" name="l05413"></a><span class="lineno"> 5413</span><span class="comment">//       Throws&lt;std::runtime_error&gt;(</span></div>
<div class="line"><a id="l05414" name="l05414"></a><span class="lineno"> 5414</span><span class="comment">//           Property(&amp;std::runtime_error::what, HasSubstr(&quot;message&quot;))));</span></div>
<div class="line"><a id="l05415" name="l05415"></a><span class="lineno"> 5415</span> </div>
<div class="line"><a id="l05416" name="l05416"></a><span class="lineno"> 5416</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Err&gt;</div>
<div class="line"><a id="l05417" name="l05417"></a><span class="lineno"> 5417</span>PolymorphicMatcher&lt;internal::ExceptionMatcherImpl&lt;Err&gt;&gt; Throws() {</div>
<div class="line"><a id="l05418" name="l05418"></a><span class="lineno"> 5418</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(</div>
<div class="line"><a id="l05419" name="l05419"></a><span class="lineno"> 5419</span>      internal::ExceptionMatcherImpl&lt;Err&gt;(A&lt;const Err&amp;&gt;()));</div>
<div class="line"><a id="l05420" name="l05420"></a><span class="lineno"> 5420</span>}</div>
<div class="line"><a id="l05421" name="l05421"></a><span class="lineno"> 5421</span> </div>
<div class="line"><a id="l05422" name="l05422"></a><span class="lineno"> 5422</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Err, <span class="keyword">typename</span> ExceptionMatcher&gt;</div>
<div class="line"><a id="l05423" name="l05423"></a><span class="lineno"> 5423</span>PolymorphicMatcher&lt;internal::ExceptionMatcherImpl&lt;Err&gt;&gt; Throws(</div>
<div class="line"><a id="l05424" name="l05424"></a><span class="lineno"> 5424</span>    <span class="keyword">const</span> ExceptionMatcher&amp; exception_matcher) {</div>
<div class="line"><a id="l05425" name="l05425"></a><span class="lineno"> 5425</span>  <span class="comment">// Using matcher cast allows users to pass a matcher of a more broad type.</span></div>
<div class="line"><a id="l05426" name="l05426"></a><span class="lineno"> 5426</span>  <span class="comment">// For example user may want to pass Matcher&lt;std::exception&gt;</span></div>
<div class="line"><a id="l05427" name="l05427"></a><span class="lineno"> 5427</span>  <span class="comment">// to Throws&lt;std::runtime_error&gt;, or Matcher&lt;int64&gt; to Throws&lt;int32&gt;.</span></div>
<div class="line"><a id="l05428" name="l05428"></a><span class="lineno"> 5428</span>  <span class="keywordflow">return</span> MakePolymorphicMatcher(internal::ExceptionMatcherImpl&lt;Err&gt;(</div>
<div class="line"><a id="l05429" name="l05429"></a><span class="lineno"> 5429</span>      SafeMatcherCast&lt;const Err&amp;&gt;(exception_matcher)));</div>
<div class="line"><a id="l05430" name="l05430"></a><span class="lineno"> 5430</span>}</div>
<div class="line"><a id="l05431" name="l05431"></a><span class="lineno"> 5431</span> </div>
<div class="line"><a id="l05432" name="l05432"></a><span class="lineno"> 5432</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> Err, <span class="keyword">typename</span> MessageMatcher&gt;</div>
<div class="line"><a id="l05433" name="l05433"></a><span class="lineno"> 5433</span>PolymorphicMatcher&lt;internal::ExceptionMatcherImpl&lt;Err&gt;&gt; ThrowsMessage(</div>
<div class="line"><a id="l05434" name="l05434"></a><span class="lineno"> 5434</span>    MessageMatcher&amp;&amp; message_matcher) {</div>
<div class="line"><a id="l05435" name="l05435"></a><span class="lineno"> 5435</span>  <span class="keyword">static_assert</span>(std::is_base_of&lt;std::exception, Err&gt;::value,</div>
<div class="line"><a id="l05436" name="l05436"></a><span class="lineno"> 5436</span>                <span class="stringliteral">&quot;expected an std::exception-derived type&quot;</span>);</div>
<div class="line"><a id="l05437" name="l05437"></a><span class="lineno"> 5437</span>  <span class="keywordflow">return</span> Throws&lt;Err&gt;(internal::WithWhat(</div>
<div class="line"><a id="l05438" name="l05438"></a><span class="lineno"> 5438</span>      MatcherCast&lt;std::string&gt;(std::forward&lt;MessageMatcher&gt;(message_matcher))));</div>
<div class="line"><a id="l05439" name="l05439"></a><span class="lineno"> 5439</span>}</div>
<div class="line"><a id="l05440" name="l05440"></a><span class="lineno"> 5440</span> </div>
<div class="line"><a id="l05441" name="l05441"></a><span class="lineno"> 5441</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_EXCEPTIONS</span></div>
<div class="line"><a id="l05442" name="l05442"></a><span class="lineno"> 5442</span> </div>
<div class="line"><a id="l05443" name="l05443"></a><span class="lineno"> 5443</span><span class="comment">// These macros allow using matchers to check values in Google Test</span></div>
<div class="line"><a id="l05444" name="l05444"></a><span class="lineno"> 5444</span><span class="comment">// tests.  ASSERT_THAT(value, matcher) and EXPECT_THAT(value, matcher)</span></div>
<div class="line"><a id="l05445" name="l05445"></a><span class="lineno"> 5445</span><span class="comment">// succeed if and only if the value matches the matcher.  If the assertion</span></div>
<div class="line"><a id="l05446" name="l05446"></a><span class="lineno"> 5446</span><span class="comment">// fails, the value and the description of the matcher will be printed.</span></div>
<div class="line"><a id="l05447" name="l05447"></a><span class="lineno"> 5447</span><span class="preprocessor">#define ASSERT_THAT(value, matcher) \</span></div>
<div class="line"><a id="l05448" name="l05448"></a><span class="lineno"> 5448</span><span class="preprocessor">  ASSERT_PRED_FORMAT1(              \</span></div>
<div class="line"><a id="l05449" name="l05449"></a><span class="lineno"> 5449</span><span class="preprocessor">      ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)</span></div>
<div class="line"><a id="l05450" name="l05450"></a><span class="lineno"> 5450</span><span class="preprocessor">#define EXPECT_THAT(value, matcher) \</span></div>
<div class="line"><a id="l05451" name="l05451"></a><span class="lineno"> 5451</span><span class="preprocessor">  EXPECT_PRED_FORMAT1(              \</span></div>
<div class="line"><a id="l05452" name="l05452"></a><span class="lineno"> 5452</span><span class="preprocessor">      ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)</span></div>
<div class="line"><a id="l05453" name="l05453"></a><span class="lineno"> 5453</span> </div>
<div class="line"><a id="l05454" name="l05454"></a><span class="lineno"> 5454</span><span class="comment">// MATCHER* macros itself are listed below.</span></div>
<div class="line"><a id="l05455" name="l05455"></a><span class="lineno"> 5455</span><span class="preprocessor">#define MATCHER(name, description)                                             \</span></div>
<div class="line"><a id="l05456" name="l05456"></a><span class="lineno"> 5456</span><span class="preprocessor">  class name##Matcher                                                          \</span></div>
<div class="line"><a id="l05457" name="l05457"></a><span class="lineno"> 5457</span><span class="preprocessor">      : public ::testing::internal::MatcherBaseImpl&lt;name##Matcher&gt; {           \</span></div>
<div class="line"><a id="l05458" name="l05458"></a><span class="lineno"> 5458</span><span class="preprocessor">   public:                                                                     \</span></div>
<div class="line"><a id="l05459" name="l05459"></a><span class="lineno"> 5459</span><span class="preprocessor">    template &lt;typename arg_type&gt;                                               \</span></div>
<div class="line"><a id="l05460" name="l05460"></a><span class="lineno"> 5460</span><span class="preprocessor">    class gmock_Impl : public ::testing::MatcherInterface&lt;const arg_type&amp;&gt; {   \</span></div>
<div class="line"><a id="l05461" name="l05461"></a><span class="lineno"> 5461</span><span class="preprocessor">     public:                                                                   \</span></div>
<div class="line"><a id="l05462" name="l05462"></a><span class="lineno"> 5462</span><span class="preprocessor">      gmock_Impl() {}                                                          \</span></div>
<div class="line"><a id="l05463" name="l05463"></a><span class="lineno"> 5463</span><span class="preprocessor">      bool MatchAndExplain(                                                    \</span></div>
<div class="line"><a id="l05464" name="l05464"></a><span class="lineno"> 5464</span><span class="preprocessor">          const arg_type&amp; arg,                                                 \</span></div>
<div class="line"><a id="l05465" name="l05465"></a><span class="lineno"> 5465</span><span class="preprocessor">          ::testing::MatchResultListener* result_listener) const override;     \</span></div>
<div class="line"><a id="l05466" name="l05466"></a><span class="lineno"> 5466</span><span class="preprocessor">      void DescribeTo(::std::ostream* gmock_os) const override {               \</span></div>
<div class="line"><a id="l05467" name="l05467"></a><span class="lineno"> 5467</span><span class="preprocessor">        *gmock_os &lt;&lt; FormatDescription(false);                                 \</span></div>
<div class="line"><a id="l05468" name="l05468"></a><span class="lineno"> 5468</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05469" name="l05469"></a><span class="lineno"> 5469</span><span class="preprocessor">      void DescribeNegationTo(::std::ostream* gmock_os) const override {       \</span></div>
<div class="line"><a id="l05470" name="l05470"></a><span class="lineno"> 5470</span><span class="preprocessor">        *gmock_os &lt;&lt; FormatDescription(true);                                  \</span></div>
<div class="line"><a id="l05471" name="l05471"></a><span class="lineno"> 5471</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05472" name="l05472"></a><span class="lineno"> 5472</span><span class="preprocessor">                                                                               \</span></div>
<div class="line"><a id="l05473" name="l05473"></a><span class="lineno"> 5473</span><span class="preprocessor">     private:                                                                  \</span></div>
<div class="line"><a id="l05474" name="l05474"></a><span class="lineno"> 5474</span><span class="preprocessor">      ::std::string FormatDescription(bool negation) const {                   \</span></div>
<div class="line"><a id="l05475" name="l05475"></a><span class="lineno"> 5475</span><span class="preprocessor">        </span><span class="comment">/* NOLINTNEXTLINE readability-redundant-string-init */</span><span class="preprocessor">                 \</span></div>
<div class="line"><a id="l05476" name="l05476"></a><span class="lineno"> 5476</span><span class="preprocessor">        ::std::string gmock_description = (description);                       \</span></div>
<div class="line"><a id="l05477" name="l05477"></a><span class="lineno"> 5477</span><span class="preprocessor">        if (!gmock_description.empty()) {                                      \</span></div>
<div class="line"><a id="l05478" name="l05478"></a><span class="lineno"> 5478</span><span class="preprocessor">          return gmock_description;                                            \</span></div>
<div class="line"><a id="l05479" name="l05479"></a><span class="lineno"> 5479</span><span class="preprocessor">        }                                                                      \</span></div>
<div class="line"><a id="l05480" name="l05480"></a><span class="lineno"> 5480</span><span class="preprocessor">        return ::testing::internal::FormatMatcherDescription(negation, #name,  \</span></div>
<div class="line"><a id="l05481" name="l05481"></a><span class="lineno"> 5481</span><span class="preprocessor">                                                             {}, {});          \</span></div>
<div class="line"><a id="l05482" name="l05482"></a><span class="lineno"> 5482</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05483" name="l05483"></a><span class="lineno"> 5483</span><span class="preprocessor">    };                                                                         \</span></div>
<div class="line"><a id="l05484" name="l05484"></a><span class="lineno"> 5484</span><span class="preprocessor">  };                                                                           \</span></div>
<div class="line"><a id="l05485" name="l05485"></a><span class="lineno"> 5485</span><span class="preprocessor">  GTEST_ATTRIBUTE_UNUSED_ inline name##Matcher name() { return {}; }           \</span></div>
<div class="line"><a id="l05486" name="l05486"></a><span class="lineno"> 5486</span><span class="preprocessor">  template &lt;typename arg_type&gt;                                                 \</span></div>
<div class="line"><a id="l05487" name="l05487"></a><span class="lineno"> 5487</span><span class="preprocessor">  bool name##Matcher::gmock_Impl&lt;arg_type&gt;::MatchAndExplain(                   \</span></div>
<div class="line"><a id="l05488" name="l05488"></a><span class="lineno"> 5488</span><span class="preprocessor">      const arg_type&amp; arg,                                                     \</span></div>
<div class="line"><a id="l05489" name="l05489"></a><span class="lineno"> 5489</span><span class="preprocessor">      ::testing::MatchResultListener* result_listener GTEST_ATTRIBUTE_UNUSED_) \</span></div>
<div class="line"><a id="l05490" name="l05490"></a><span class="lineno"> 5490</span><span class="preprocessor">      const</span></div>
<div class="line"><a id="l05491" name="l05491"></a><span class="lineno"> 5491</span> </div>
<div class="line"><a id="l05492" name="l05492"></a><span class="lineno"> 5492</span><span class="preprocessor">#define MATCHER_P(name, p0, description) \</span></div>
<div class="line"><a id="l05493" name="l05493"></a><span class="lineno"> 5493</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP, description, (#p0), (p0))</span></div>
<div class="line"><a id="l05494" name="l05494"></a><span class="lineno"> 5494</span><span class="preprocessor">#define MATCHER_P2(name, p0, p1, description)                            \</span></div>
<div class="line"><a id="l05495" name="l05495"></a><span class="lineno"> 5495</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP2, description, (#p0, #p1), \</span></div>
<div class="line"><a id="l05496" name="l05496"></a><span class="lineno"> 5496</span><span class="preprocessor">                         (p0, p1))</span></div>
<div class="line"><a id="l05497" name="l05497"></a><span class="lineno"> 5497</span><span class="preprocessor">#define MATCHER_P3(name, p0, p1, p2, description)                             \</span></div>
<div class="line"><a id="l05498" name="l05498"></a><span class="lineno"> 5498</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP3, description, (#p0, #p1, #p2), \</span></div>
<div class="line"><a id="l05499" name="l05499"></a><span class="lineno"> 5499</span><span class="preprocessor">                         (p0, p1, p2))</span></div>
<div class="line"><a id="l05500" name="l05500"></a><span class="lineno"> 5500</span><span class="preprocessor">#define MATCHER_P4(name, p0, p1, p2, p3, description)        \</span></div>
<div class="line"><a id="l05501" name="l05501"></a><span class="lineno"> 5501</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP4, description, \</span></div>
<div class="line"><a id="l05502" name="l05502"></a><span class="lineno"> 5502</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3), (p0, p1, p2, p3))</span></div>
<div class="line"><a id="l05503" name="l05503"></a><span class="lineno"> 5503</span><span class="preprocessor">#define MATCHER_P5(name, p0, p1, p2, p3, p4, description)    \</span></div>
<div class="line"><a id="l05504" name="l05504"></a><span class="lineno"> 5504</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP5, description, \</span></div>
<div class="line"><a id="l05505" name="l05505"></a><span class="lineno"> 5505</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4), (p0, p1, p2, p3, p4))</span></div>
<div class="line"><a id="l05506" name="l05506"></a><span class="lineno"> 5506</span><span class="preprocessor">#define MATCHER_P6(name, p0, p1, p2, p3, p4, p5, description) \</span></div>
<div class="line"><a id="l05507" name="l05507"></a><span class="lineno"> 5507</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP6, description,  \</span></div>
<div class="line"><a id="l05508" name="l05508"></a><span class="lineno"> 5508</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4, #p5),      \</span></div>
<div class="line"><a id="l05509" name="l05509"></a><span class="lineno"> 5509</span><span class="preprocessor">                         (p0, p1, p2, p3, p4, p5))</span></div>
<div class="line"><a id="l05510" name="l05510"></a><span class="lineno"> 5510</span><span class="preprocessor">#define MATCHER_P7(name, p0, p1, p2, p3, p4, p5, p6, description) \</span></div>
<div class="line"><a id="l05511" name="l05511"></a><span class="lineno"> 5511</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP7, description,      \</span></div>
<div class="line"><a id="l05512" name="l05512"></a><span class="lineno"> 5512</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4, #p5, #p6),     \</span></div>
<div class="line"><a id="l05513" name="l05513"></a><span class="lineno"> 5513</span><span class="preprocessor">                         (p0, p1, p2, p3, p4, p5, p6))</span></div>
<div class="line"><a id="l05514" name="l05514"></a><span class="lineno"> 5514</span><span class="preprocessor">#define MATCHER_P8(name, p0, p1, p2, p3, p4, p5, p6, p7, description) \</span></div>
<div class="line"><a id="l05515" name="l05515"></a><span class="lineno"> 5515</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP8, description,          \</span></div>
<div class="line"><a id="l05516" name="l05516"></a><span class="lineno"> 5516</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4, #p5, #p6, #p7),    \</span></div>
<div class="line"><a id="l05517" name="l05517"></a><span class="lineno"> 5517</span><span class="preprocessor">                         (p0, p1, p2, p3, p4, p5, p6, p7))</span></div>
<div class="line"><a id="l05518" name="l05518"></a><span class="lineno"> 5518</span><span class="preprocessor">#define MATCHER_P9(name, p0, p1, p2, p3, p4, p5, p6, p7, p8, description) \</span></div>
<div class="line"><a id="l05519" name="l05519"></a><span class="lineno"> 5519</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP9, description,              \</span></div>
<div class="line"><a id="l05520" name="l05520"></a><span class="lineno"> 5520</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4, #p5, #p6, #p7, #p8),   \</span></div>
<div class="line"><a id="l05521" name="l05521"></a><span class="lineno"> 5521</span><span class="preprocessor">                         (p0, p1, p2, p3, p4, p5, p6, p7, p8))</span></div>
<div class="line"><a id="l05522" name="l05522"></a><span class="lineno"> 5522</span><span class="preprocessor">#define MATCHER_P10(name, p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, description) \</span></div>
<div class="line"><a id="l05523" name="l05523"></a><span class="lineno"> 5523</span><span class="preprocessor">  GMOCK_INTERNAL_MATCHER(name, name##MatcherP10, description,                  \</span></div>
<div class="line"><a id="l05524" name="l05524"></a><span class="lineno"> 5524</span><span class="preprocessor">                         (#p0, #p1, #p2, #p3, #p4, #p5, #p6, #p7, #p8, #p9),   \</span></div>
<div class="line"><a id="l05525" name="l05525"></a><span class="lineno"> 5525</span><span class="preprocessor">                         (p0, p1, p2, p3, p4, p5, p6, p7, p8, p9))</span></div>
<div class="line"><a id="l05526" name="l05526"></a><span class="lineno"> 5526</span> </div>
<div class="line"><a id="l05527" name="l05527"></a><span class="lineno"> 5527</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER(name, full_name, description, arg_names, args)  \</span></div>
<div class="line"><a id="l05528" name="l05528"></a><span class="lineno"> 5528</span><span class="preprocessor">  template &lt;GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)&gt;                      \</span></div>
<div class="line"><a id="l05529" name="l05529"></a><span class="lineno"> 5529</span><span class="preprocessor">  class full_name : public ::testing::internal::MatcherBaseImpl&lt;               \</span></div>
<div class="line"><a id="l05530" name="l05530"></a><span class="lineno"> 5530</span><span class="preprocessor">                        full_name&lt;GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)&gt;&gt; { \</span></div>
<div class="line"><a id="l05531" name="l05531"></a><span class="lineno"> 5531</span><span class="preprocessor">   public:                                                                     \</span></div>
<div class="line"><a id="l05532" name="l05532"></a><span class="lineno"> 5532</span><span class="preprocessor">    using full_name::MatcherBaseImpl::MatcherBaseImpl;                         \</span></div>
<div class="line"><a id="l05533" name="l05533"></a><span class="lineno"> 5533</span><span class="preprocessor">    template &lt;typename arg_type&gt;                                               \</span></div>
<div class="line"><a id="l05534" name="l05534"></a><span class="lineno"> 5534</span><span class="preprocessor">    class gmock_Impl : public ::testing::MatcherInterface&lt;const arg_type&amp;&gt; {   \</span></div>
<div class="line"><a id="l05535" name="l05535"></a><span class="lineno"> 5535</span><span class="preprocessor">     public:                                                                   \</span></div>
<div class="line"><a id="l05536" name="l05536"></a><span class="lineno"> 5536</span><span class="preprocessor">      explicit gmock_Impl(GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args))          \</span></div>
<div class="line"><a id="l05537" name="l05537"></a><span class="lineno"> 5537</span><span class="preprocessor">          : GMOCK_INTERNAL_MATCHER_FORWARD_ARGS(args) {}                       \</span></div>
<div class="line"><a id="l05538" name="l05538"></a><span class="lineno"> 5538</span><span class="preprocessor">      bool MatchAndExplain(                                                    \</span></div>
<div class="line"><a id="l05539" name="l05539"></a><span class="lineno"> 5539</span><span class="preprocessor">          const arg_type&amp; arg,                                                 \</span></div>
<div class="line"><a id="l05540" name="l05540"></a><span class="lineno"> 5540</span><span class="preprocessor">          ::testing::MatchResultListener* result_listener) const override;     \</span></div>
<div class="line"><a id="l05541" name="l05541"></a><span class="lineno"> 5541</span><span class="preprocessor">      void DescribeTo(::std::ostream* gmock_os) const override {               \</span></div>
<div class="line"><a id="l05542" name="l05542"></a><span class="lineno"> 5542</span><span class="preprocessor">        *gmock_os &lt;&lt; FormatDescription(false);                                 \</span></div>
<div class="line"><a id="l05543" name="l05543"></a><span class="lineno"> 5543</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05544" name="l05544"></a><span class="lineno"> 5544</span><span class="preprocessor">      void DescribeNegationTo(::std::ostream* gmock_os) const override {       \</span></div>
<div class="line"><a id="l05545" name="l05545"></a><span class="lineno"> 5545</span><span class="preprocessor">        *gmock_os &lt;&lt; FormatDescription(true);                                  \</span></div>
<div class="line"><a id="l05546" name="l05546"></a><span class="lineno"> 5546</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05547" name="l05547"></a><span class="lineno"> 5547</span><span class="preprocessor">      GMOCK_INTERNAL_MATCHER_MEMBERS(args)                                     \</span></div>
<div class="line"><a id="l05548" name="l05548"></a><span class="lineno"> 5548</span><span class="preprocessor">                                                                               \</span></div>
<div class="line"><a id="l05549" name="l05549"></a><span class="lineno"> 5549</span><span class="preprocessor">     private:                                                                  \</span></div>
<div class="line"><a id="l05550" name="l05550"></a><span class="lineno"> 5550</span><span class="preprocessor">      ::std::string FormatDescription(bool negation) const {                   \</span></div>
<div class="line"><a id="l05551" name="l05551"></a><span class="lineno"> 5551</span><span class="preprocessor">        ::std::string gmock_description = (description);                       \</span></div>
<div class="line"><a id="l05552" name="l05552"></a><span class="lineno"> 5552</span><span class="preprocessor">        if (!gmock_description.empty()) {                                      \</span></div>
<div class="line"><a id="l05553" name="l05553"></a><span class="lineno"> 5553</span><span class="preprocessor">          return gmock_description;                                            \</span></div>
<div class="line"><a id="l05554" name="l05554"></a><span class="lineno"> 5554</span><span class="preprocessor">        }                                                                      \</span></div>
<div class="line"><a id="l05555" name="l05555"></a><span class="lineno"> 5555</span><span class="preprocessor">        return ::testing::internal::FormatMatcherDescription(                  \</span></div>
<div class="line"><a id="l05556" name="l05556"></a><span class="lineno"> 5556</span><span class="preprocessor">            negation, #name, {GMOCK_PP_REMOVE_PARENS(arg_names)},              \</span></div>
<div class="line"><a id="l05557" name="l05557"></a><span class="lineno"> 5557</span><span class="preprocessor">            ::testing::internal::UniversalTersePrintTupleFieldsToStrings(      \</span></div>
<div class="line"><a id="l05558" name="l05558"></a><span class="lineno"> 5558</span><span class="preprocessor">                ::std::tuple&lt;GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)&gt;(        \</span></div>
<div class="line"><a id="l05559" name="l05559"></a><span class="lineno"> 5559</span><span class="preprocessor">                    GMOCK_INTERNAL_MATCHER_MEMBERS_USAGE(args))));             \</span></div>
<div class="line"><a id="l05560" name="l05560"></a><span class="lineno"> 5560</span><span class="preprocessor">      }                                                                        \</span></div>
<div class="line"><a id="l05561" name="l05561"></a><span class="lineno"> 5561</span><span class="preprocessor">    };                                                                         \</span></div>
<div class="line"><a id="l05562" name="l05562"></a><span class="lineno"> 5562</span><span class="preprocessor">  };                                                                           \</span></div>
<div class="line"><a id="l05563" name="l05563"></a><span class="lineno"> 5563</span><span class="preprocessor">  template &lt;GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)&gt;                      \</span></div>
<div class="line"><a id="l05564" name="l05564"></a><span class="lineno"> 5564</span><span class="preprocessor">  inline full_name&lt;GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)&gt; name(             \</span></div>
<div class="line"><a id="l05565" name="l05565"></a><span class="lineno"> 5565</span><span class="preprocessor">      GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args)) {                            \</span></div>
<div class="line"><a id="l05566" name="l05566"></a><span class="lineno"> 5566</span><span class="preprocessor">    return full_name&lt;GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)&gt;(                \</span></div>
<div class="line"><a id="l05567" name="l05567"></a><span class="lineno"> 5567</span><span class="preprocessor">        GMOCK_INTERNAL_MATCHER_ARGS_USAGE(args));                              \</span></div>
<div class="line"><a id="l05568" name="l05568"></a><span class="lineno"> 5568</span><span class="preprocessor">  }                                                                            \</span></div>
<div class="line"><a id="l05569" name="l05569"></a><span class="lineno"> 5569</span><span class="preprocessor">  template &lt;GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args)&gt;                      \</span></div>
<div class="line"><a id="l05570" name="l05570"></a><span class="lineno"> 5570</span><span class="preprocessor">  template &lt;typename arg_type&gt;                                                 \</span></div>
<div class="line"><a id="l05571" name="l05571"></a><span class="lineno"> 5571</span><span class="preprocessor">  bool full_name&lt;GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args)&gt;::gmock_Impl&lt;        \</span></div>
<div class="line"><a id="l05572" name="l05572"></a><span class="lineno"> 5572</span><span class="preprocessor">      arg_type&gt;::MatchAndExplain(const arg_type&amp; arg,                          \</span></div>
<div class="line"><a id="l05573" name="l05573"></a><span class="lineno"> 5573</span><span class="preprocessor">                                 ::testing::MatchResultListener*               \</span></div>
<div class="line"><a id="l05574" name="l05574"></a><span class="lineno"> 5574</span><span class="preprocessor">                                     result_listener GTEST_ATTRIBUTE_UNUSED_)  \</span></div>
<div class="line"><a id="l05575" name="l05575"></a><span class="lineno"> 5575</span><span class="preprocessor">      const</span></div>
<div class="line"><a id="l05576" name="l05576"></a><span class="lineno"> 5576</span> </div>
<div class="line"><a id="l05577" name="l05577"></a><span class="lineno"> 5577</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAMS(args) \</span></div>
<div class="line"><a id="l05578" name="l05578"></a><span class="lineno"> 5578</span><span class="preprocessor">  GMOCK_PP_TAIL(                                     \</span></div>
<div class="line"><a id="l05579" name="l05579"></a><span class="lineno"> 5579</span><span class="preprocessor">      GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAM, , args))</span></div>
<div class="line"><a id="l05580" name="l05580"></a><span class="lineno"> 5580</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_TEMPLATE_PARAM(i_unused, data_unused, arg) \</span></div>
<div class="line"><a id="l05581" name="l05581"></a><span class="lineno"> 5581</span><span class="preprocessor">  , typename arg##_type</span></div>
<div class="line"><a id="l05582" name="l05582"></a><span class="lineno"> 5582</span> </div>
<div class="line"><a id="l05583" name="l05583"></a><span class="lineno"> 5583</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_TYPE_PARAMS(args) \</span></div>
<div class="line"><a id="l05584" name="l05584"></a><span class="lineno"> 5584</span><span class="preprocessor">  GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_TYPE_PARAM, , args))</span></div>
<div class="line"><a id="l05585" name="l05585"></a><span class="lineno"> 5585</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_TYPE_PARAM(i_unused, data_unused, arg) \</span></div>
<div class="line"><a id="l05586" name="l05586"></a><span class="lineno"> 5586</span><span class="preprocessor">  , arg##_type</span></div>
<div class="line"><a id="l05587" name="l05587"></a><span class="lineno"> 5587</span> </div>
<div class="line"><a id="l05588" name="l05588"></a><span class="lineno"> 5588</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_FUNCTION_ARGS(args) \</span></div>
<div class="line"><a id="l05589" name="l05589"></a><span class="lineno"> 5589</span><span class="preprocessor">  GMOCK_PP_TAIL(dummy_first GMOCK_PP_FOR_EACH(     \</span></div>
<div class="line"><a id="l05590" name="l05590"></a><span class="lineno"> 5590</span><span class="preprocessor">      GMOCK_INTERNAL_MATCHER_FUNCTION_ARG, , args))</span></div>
<div class="line"><a id="l05591" name="l05591"></a><span class="lineno"> 5591</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_FUNCTION_ARG(i, data_unused, arg) \</span></div>
<div class="line"><a id="l05592" name="l05592"></a><span class="lineno"> 5592</span><span class="preprocessor">  , arg##_type gmock_p##i</span></div>
<div class="line"><a id="l05593" name="l05593"></a><span class="lineno"> 5593</span> </div>
<div class="line"><a id="l05594" name="l05594"></a><span class="lineno"> 5594</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_FORWARD_ARGS(args) \</span></div>
<div class="line"><a id="l05595" name="l05595"></a><span class="lineno"> 5595</span><span class="preprocessor">  GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_FORWARD_ARG, , args))</span></div>
<div class="line"><a id="l05596" name="l05596"></a><span class="lineno"> 5596</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_FORWARD_ARG(i, data_unused, arg) \</span></div>
<div class="line"><a id="l05597" name="l05597"></a><span class="lineno"> 5597</span><span class="preprocessor">  , arg(::std::forward&lt;arg##_type&gt;(gmock_p##i))</span></div>
<div class="line"><a id="l05598" name="l05598"></a><span class="lineno"> 5598</span> </div>
<div class="line"><a id="l05599" name="l05599"></a><span class="lineno"> 5599</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_MEMBERS(args) \</span></div>
<div class="line"><a id="l05600" name="l05600"></a><span class="lineno"> 5600</span><span class="preprocessor">  GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_MEMBER, , args)</span></div>
<div class="line"><a id="l05601" name="l05601"></a><span class="lineno"> 5601</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_MEMBER(i_unused, data_unused, arg) \</span></div>
<div class="line"><a id="l05602" name="l05602"></a><span class="lineno"> 5602</span><span class="preprocessor">  const arg##_type arg;</span></div>
<div class="line"><a id="l05603" name="l05603"></a><span class="lineno"> 5603</span> </div>
<div class="line"><a id="l05604" name="l05604"></a><span class="lineno"> 5604</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_MEMBERS_USAGE(args) \</span></div>
<div class="line"><a id="l05605" name="l05605"></a><span class="lineno"> 5605</span><span class="preprocessor">  GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_MEMBER_USAGE, , args))</span></div>
<div class="line"><a id="l05606" name="l05606"></a><span class="lineno"> 5606</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_MEMBER_USAGE(i_unused, data_unused, arg) , arg</span></div>
<div class="line"><a id="l05607" name="l05607"></a><span class="lineno"> 5607</span> </div>
<div class="line"><a id="l05608" name="l05608"></a><span class="lineno"> 5608</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_ARGS_USAGE(args) \</span></div>
<div class="line"><a id="l05609" name="l05609"></a><span class="lineno"> 5609</span><span class="preprocessor">  GMOCK_PP_TAIL(GMOCK_PP_FOR_EACH(GMOCK_INTERNAL_MATCHER_ARG_USAGE, , args))</span></div>
<div class="line"><a id="l05610" name="l05610"></a><span class="lineno"> 5610</span><span class="preprocessor">#define GMOCK_INTERNAL_MATCHER_ARG_USAGE(i, data_unused, arg_unused) \</span></div>
<div class="line"><a id="l05611" name="l05611"></a><span class="lineno"> 5611</span><span class="preprocessor">  , gmock_p##i</span></div>
<div class="line"><a id="l05612" name="l05612"></a><span class="lineno"> 5612</span> </div>
<div class="line"><a id="l05613" name="l05613"></a><span class="lineno"> 5613</span><span class="comment">// To prevent ADL on certain functions we put them on a separate namespace.</span></div>
<div class="line"><a id="l05614" name="l05614"></a><span class="lineno"> 5614</span><span class="keyword">using namespace </span>no_adl;  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l05615" name="l05615"></a><span class="lineno"> 5615</span> </div>
<div class="line"><a id="l05616" name="l05616"></a><span class="lineno"> 5616</span>}  <span class="comment">// namespace testing</span></div>
<div class="line"><a id="l05617" name="l05617"></a><span class="lineno"> 5617</span> </div>
<div class="line"><a id="l05618" name="l05618"></a><span class="lineno"> 5618</span>GTEST_DISABLE_MSC_WARNINGS_POP_()  <span class="comment">//  4251 5046</span></div>
<div class="line"><a id="l05619" name="l05619"></a><span class="lineno"> 5619</span> </div>
<div class="line"><a id="l05620" name="l05620"></a><span class="lineno"> 5620</span><span class="comment">// Include any custom callback matchers added by the local installation.</span></div>
<div class="line"><a id="l05621" name="l05621"></a><span class="lineno"> 5621</span><span class="comment">// We must include this header at the end to make sure it can use the</span></div>
<div class="line"><a id="l05622" name="l05622"></a><span class="lineno"> 5622</span><span class="comment">// declarations from this file.</span></div>
<div class="line"><a id="l05623" name="l05623"></a><span class="lineno"> 5623</span><span class="preprocessor">#include &quot;gmock/internal/custom/gmock-matchers.h&quot;</span></div>
<div class="line"><a id="l05624" name="l05624"></a><span class="lineno"> 5624</span> </div>
<div class="line"><a id="l05625" name="l05625"></a><span class="lineno"> 5625</span><span class="preprocessor">#endif  </span><span class="comment">// GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MATCHERS_H_</span></div>
<div class="ttc" id="aclasstesting_1_1_matcher_html"><div class="ttname"><a href="classtesting_1_1_matcher.html">testing::Matcher</a></div><div class="ttdef"><b>Definition</b> gmock-internal-utils.h:55</div></div>
<div class="ttc" id="aclasstesting_1_1internal_1_1_stl_container_view_html"><div class="ttname"><a href="classtesting_1_1internal_1_1_stl_container_view.html">testing::internal::StlContainerView</a></div><div class="ttdef"><b>Definition</b> gmock-internal-utils.h:327</div></div>
<div class="ttc" id="aclasstesting_1_1internal_1_1_to_html"><div class="ttname"><a href="classtesting_1_1internal_1_1_to.html">testing::internal::To</a></div><div class="ttdef"><b>Definition</b> googletest-port-test.cc:194</div></div>
<div class="ttc" id="astructtesting_1_1internal_1_1_index_sequence_html"><div class="ttname"><a href="structtesting_1_1internal_1_1_index_sequence.html">testing::internal::IndexSequence</a></div><div class="ttdef"><b>Definition</b> gtest-internal.h:1159</div></div>
<div class="ttc" id="astructtesting_1_1internal_1_1negation_html"><div class="ttname"><a href="structtesting_1_1internal_1_1negation.html">testing::internal::negation</a></div><div class="ttdef"><b>Definition</b> gmock-actions.h:271</div></div>
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